{"id":10789,"date":"2025-01-29T17:51:21","date_gmt":"2025-01-29T12:21:21","guid":{"rendered":"https:\/\/haycarb.com\/?page_id=10789"},"modified":"2025-10-14T17:23:53","modified_gmt":"2025-10-14T11:53:53","slug":"activated-carbon-development-for-a-powered-air-purifying-respirator","status":"publish","type":"page","link":"https:\/\/www.haycarb.com\/kr\/resources\/activated-carbon-development-for-a-powered-air-purifying-respirator\/","title":{"rendered":"Activated Carbon Development for a Powered Air Purifying Respirator"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"10789\" class=\"elementor elementor-10789\" data-elementor-settings=\"{&quot;element_pack_global_tooltip_width&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;element_pack_global_tooltip_width_widescreen&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;element_pack_global_tooltip_width_laptop&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;element_pack_global_tooltip_width_tablet_extra&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;element_pack_global_tooltip_width_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;element_pack_global_tooltip_width_mobile_extra&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;element_pack_global_tooltip_width_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;element_pack_global_tooltip_padding&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_padding_widescreen&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_padding_laptop&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_padding_tablet_extra&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_padding_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_padding_mobile_extra&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_padding_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_border_radius&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_border_radius_widescreen&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_border_radius_laptop&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_border_radius_tablet_extra&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_border_radius_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_border_radius_mobile_extra&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true},&quot;element_pack_global_tooltip_border_radius_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;top&quot;:&quot;&quot;,&quot;right&quot;:&quot;&quot;,&quot;bottom&quot;:&quot;&quot;,&quot;left&quot;:&quot;&quot;,&quot;isLinked&quot;:true}}\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-53d9dc5 animated-slow e-flex e-con-boxed elementor-invisible e-con e-parent\" data-id=\"53d9dc5\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;animation&quot;:&quot;fadeIn&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-88c6478 elementor-widget elementor-widget-heading\" data-id=\"88c6478\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Activated Carbon Development for a Powered Air Purifying Respirator<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-eac5fe6 elementor-hidden-widescreen elementor-hidden-desktop elementor-hidden-laptop elementor-hidden-tablet_extra elementor-hidden-tablet elementor-hidden-mobile_extra elementor-hidden-mobile elementor-widget elementor-widget-bdt-breadcrumbs\" data-id=\"eac5fe6\" data-element_type=\"widget\" data-widget_type=\"bdt-breadcrumbs.default\">\n\t\t\t\t\t<div class='bdt-ep-breadcrumbs-wrapper'><ul class=\"bdt-ep-breadcrumb breadcrumb-align-left\"><li><a href=\"https:\/\/www.haycarb.com\/kr\/\">\ud5e4\uc774\uce74\ube0c<\/a><\/li>\n<li><span> \ud398\uc774\uc9c0<\/span><\/li>\n<\/ul><\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8e5b5c6 text-left elementor-widget elementor-widget-tp-breadcrumbs-bar\" data-id=\"8e5b5c6\" data-element_type=\"widget\" data-widget_type=\"tp-breadcrumbs-bar.default\">\n\t\t\t\t\t<div id=\"bread69dbd5b3150cf\" class=\"pt_plus_breadcrumbs_bar\"  \"><div class=\"pt_plus_breadcrumbs_bar_inner bred_style_1\"><nav id=\"breadcrumbs\"><span class=\"bc_home\"><a class=\"home_bread_tab\" href=\"https:\/\/www.haycarb.com\/kr\/\">\ud5e4\uc774\uce74\ube0c<i class=\"fa fa-chevron-right bread-sep-icon\" ><\/i><\/a><\/span> <span class=\"del\"><\/span> <span class=\"current on-off-current\"><div class=\"current_tab_sec\">\ud398\uc774\uc9c0<\/div><\/span><\/nav><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-bdt-parallax=\"border-color: #D11111,#AFAFAF;\" class=\"elementor-element elementor-element-9145c16 e-flex e-con-boxed e-con e-parent\" data-id=\"9145c16\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6ca9c79 elementor-widget elementor-widget-spacer\" data-id=\"6ca9c79\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6c86405 animated-slow e-flex e-con-boxed elementor-invisible e-con e-parent\" data-id=\"6c86405\" data-element_type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;fadeIn&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-7bda122 e-con-full e-flex e-con e-child\" data-id=\"7bda122\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ccdc206 elementor-widget__width-initial elementor-widget-laptop__width-initial elementor-widget-tablet__width-inherit elementor-widget-mobile__width-inherit elementor-widget elementor-widget-text-editor\" data-id=\"ccdc206\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Discover how a respirator manufacturer partnered with Haycarb for expert recommendations and tailored carbon samples for OV\/AG filters in a Powered Air Purifying Respirator (PAPR) system, aiming for NIOSH certification. Leveraging its expertise in activated carbon for air purification, Haycarb provided optimized carbon samples, tested against various gases to ensure effective filtration and compliance in supporting reliable respiratory protection.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-180bde2 e-con-full e-flex e-con e-parent\" data-id=\"180bde2\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-e7f9561 e-flex e-con-boxed e-con e-child\" data-id=\"e7f9561\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-c9f5ca5 e-con-full animated-slow e-flex elementor-invisible e-con e-child\" data-id=\"c9f5ca5\" data-element_type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;fadeIn&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-31f43bf e-grid e-con-full e-con e-child\" data-id=\"31f43bf\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-ec3dd82 e-con-full e-flex e-con e-child\" data-id=\"ec3dd82\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a31f02f elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-image\" data-id=\"a31f02f\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.haycarb.com\/wp-content\/uploads\/2025\/04\/2021-22-18.webp\" class=\"attachment-full size-full wp-image-14914\" alt=\"\" srcset=\"https:\/\/www.haycarb.com\/wp-content\/uploads\/2025\/04\/2021-22-18.webp 1024w, https:\/\/www.haycarb.com\/wp-content\/uploads\/2025\/04\/2021-22-18-300x300.webp 300w, https:\/\/www.haycarb.com\/wp-content\/uploads\/2025\/04\/2021-22-18-150x150.webp 150w, https:\/\/www.haycarb.com\/wp-content\/uploads\/2025\/04\/2021-22-18-768x768.webp 768w, https:\/\/www.haycarb.com\/wp-content\/uploads\/2025\/04\/2021-22-18-700x700.webp 700w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-64ef5c5 e-con-full e-flex e-con e-child\" data-id=\"64ef5c5\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a34baac elementor-widget__width-initial elementor-widget-mobile_extra__width-inherit elementor-widget elementor-widget-heading\" data-id=\"a34baac\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Background\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0b468f9 elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget-laptop__width-initial elementor-widget-tablet__width-inherit elementor-widget elementor-widget-heading\" data-id=\"0b468f9\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">The design of gas and vapour filters for Powered Air Purifying Devices (PAPRs) is always a complex process, with several iterative steps with attendant testing and evaluations to be followed. Haycarb has long experience in this field, supplying and supporting leading PPE companies with high quality coconut shell carbon for decades. Our team of Chemists and Engineers is well rehearsed in the processes of prototype carbon production, based on the requirements and test feedback from customers.\n<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-44ffa60 e-con-full animated-slow e-flex elementor-invisible e-con e-child\" data-id=\"44ffa60\" data-element_type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;fadeIn&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-ff33c56 e-grid e-con-full e-con e-child\" data-id=\"ff33c56\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-db6eeac e-con-full e-flex e-con e-child\" data-id=\"db6eeac\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7867e0b elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-image\" data-id=\"7867e0b\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.haycarb.com\/wp-content\/uploads\/2025\/04\/2021-22-43.webp\" class=\"attachment-full size-full wp-image-14915\" alt=\"\" srcset=\"https:\/\/www.haycarb.com\/wp-content\/uploads\/2025\/04\/2021-22-43.webp 1024w, https:\/\/www.haycarb.com\/wp-content\/uploads\/2025\/04\/2021-22-43-300x300.webp 300w, https:\/\/www.haycarb.com\/wp-content\/uploads\/2025\/04\/2021-22-43-150x150.webp 150w, https:\/\/www.haycarb.com\/wp-content\/uploads\/2025\/04\/2021-22-43-768x768.webp 768w, https:\/\/www.haycarb.com\/wp-content\/uploads\/2025\/04\/2021-22-43-700x700.webp 700w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9614566 e-con-full e-flex e-con e-child\" data-id=\"9614566\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-eebb280 elementor-widget__width-initial elementor-widget-mobile_extra__width-inherit elementor-widget elementor-widget-heading\" data-id=\"eebb280\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2ce682a elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget-laptop__width-initial elementor-widget-tablet__width-inherit elementor-widget elementor-widget-heading\" data-id=\"2ce682a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">In general, Powered Air Purifying respirators are widely used when respiratory protection is required for long periods of the working day. They have the distinct advantage of reducing the burden of wearing respiratory protection for workers, by minimising the work of breathing, and providing a cooling air flow. In some cases, by the use of hood or helmet headtops, they remove the need for a tight face-seal. They can also aid the integration of other protective modes such as eye, face, skin and head protection, through the availability of multi-mode devices, certified to multiple applicable standards.<br><br>\n\n\n\nThe use of PAPRs, sometimes called powered respirators, has expanded greatly over the years, with many different applications in industries such as metals (smelting, refining, welding etc), pharmaceutical production, chemical processing, painting and finishing, asbestos and mould abatement, agriculture, and many others. In most countries, if they are to be used in the workplace, they require certification to recognised national or international standards. The best known of these are the US NIOSH (National Institute for Occupational Safety and Health), promulgated via 42CFR84, and the European standards EN12941 and EN12942.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-053e40e e-con-full e-flex e-con e-parent\" data-id=\"053e40e\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-3a8aa57 e-flex e-con-boxed e-con e-child\" data-id=\"3a8aa57\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9319295 elementor-widget__width-inherit animated-slow elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"9319295\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeIn&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Types of Gas\/Vapour Filters\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-25d496a elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"25d496a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">In common with negative pressure respirator standards, there are requirements for the actual filter elements, which are generally replaceable spares. Firstly, they may be defined as either particle filters, or gas\/vapour filters, or combination filters, which offer both filtration modes. The usual media choice for gas and vapour filters is activated carbon. Beyond this, gas and vapour filters are then defined by type, according to the type of gas they are intended to remove. Examples of types of filters include OV (Organic Vapour), and AG (Acid Gas), in 42CFR84, or the well-known A, B, E and K types in European standards. OV or A type filters will require a high surface area base carbon for the filters, usually coconut based, whereas the other types will require impregnation to allow chemisorption processes to take place within the filter bed during use.\n\n<\/p>\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-cf6212c e-con-full animated-slow e-flex elementor-invisible e-con e-child\" data-id=\"cf6212c\" data-element_type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;fadeIn&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6b04286 elementor-widget__width-initial elementor-widget-mobile_extra__width-inherit elementor-widget elementor-widget-heading\" data-id=\"6b04286\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Airflow Considerations\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c472f8c elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"c472f8c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">The filter development is a critical element in any powered respirator design. It is one of the main components of the system, together with the blower, battery, headtop, and any hose or valve systems. The performance of a system relies on delivery of the correct airflow into the headtop at all times during the use period, and manufacturers must ensure that their system delivers this airflow right through the design duration of the system. Some systems are designed to be reactive, delivering air on demand, following the wearer\u2019s breathing pattern. In all cases, the filter is a resistive element in the system, and the pressure drop therefore needs to be very carefully matched to ensure the blower is capable of delivering the correct flow. The higher the resistance of the filter, the higher the power requirement for the blower, which then leads to additional weight, especially of the battery.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ff543ca e-con-full animated-slow e-flex elementor-invisible e-con e-child\" data-id=\"ff543ca\" data-element_type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;fadeIn&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6af9c6a elementor-widget__width-initial elementor-widget-mobile_extra__width-inherit elementor-widget elementor-widget-heading\" data-id=\"6af9c6a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Filter Capacity &amp; Considerations\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1e205f1 elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"1e205f1\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">The capacity of the filter to remove harmful gases and vapours has also to be tested under the standards. There is a defined minimum filter life against the representative gas test chemicals. Typically, the capacity of the filter needs to be tested at the system flowrate, which needs to be determined in advance.<br><br>\n \n\nOnce the system flowrate is known, the test flowrate for the filters can be determined (with flow divided between the number of filters in the system, typically 1-3). The type classification is determined by the designer, who decides which they want their filter to meet, depending on the target market.<br><br>\n \n\nThe final decision is the class, which is a measure of the filter capacity. In the European standard there are 3 capacity classes (1,2, and 3, in increasing order of gas capacity), and it must be borne in mind that these are defined differently from the classes in the negative pressure standards (such as EN14387).  The higher the capacity class of the filter, the longer the filter will last in a given concentration of contaminant, although the filters and the system then get heavier.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-83c3d18 e-con-full e-flex e-con e-parent\" data-id=\"83c3d18\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-324feda e-flex e-con-boxed e-con e-child\" data-id=\"324feda\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b045880 elementor-widget__width-inherit animated-slow elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"b045880\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeIn&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Cooperative Development\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bd171c7 elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"bd171c7\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">A filter designer, representing a respirator manufacturer, contacted us to request recommendations and samples of carbon for OV\/AG filters for a Powered Respirator Systems to be certified under the NIOSH system. We were able to help them through this process by following certain key steps;\n\n<\/p>\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c8a51b8 e-con-full animated-slow e-flex elementor-invisible e-con e-child\" data-id=\"c8a51b8\" data-element_type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;fadeIn&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5e6b285 elementor-widget__width-initial elementor-widget-mobile_extra__width-inherit elementor-widget elementor-widget-heading\" data-id=\"5e6b285\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Initial Volume Calculation\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c6316aa elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"c6316aa\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">A rough calculation of the volume of the required filter bed was initially made, taking account of the required flowrates and filter types. This is based on in-house data and experience.\n<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bde8de4 e-con-full animated-slow e-flex elementor-invisible e-con e-child\" data-id=\"bde8de4\" data-element_type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;fadeIn&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-790a1a0 elementor-widget__width-initial elementor-widget-mobile_extra__width-inherit elementor-widget elementor-widget-heading\" data-id=\"790a1a0\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Prototype Development\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-88a32e9 elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"88a32e9\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">The filter designer would then normally make rapid prototype filter bodies which can be filled with carbon, although a certain amount of checking can also be done by using refillable carbon vessels in our own laboratory.\n<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1186e01 e-con-full animated-slow e-flex elementor-invisible e-con e-child\" data-id=\"1186e01\" data-element_type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;fadeIn&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4648578 elementor-widget__width-initial elementor-widget-mobile_extra__width-inherit elementor-widget elementor-widget-heading\" data-id=\"4648578\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Carbon Sizing and Pressure Drop Considerations\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ab6039f elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"ab6039f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">The next stage is to establish the potential carbon sizing, noting that the smaller the carbon mesh size, the more efficient will be the contaminant adsorption, whilst the pressure drop would also be higher. Achieving the correct balance here is especially critical in powered respirator systems. This work can be done more cheaply through the supply of 2-3 different size ranges of base carbon, which the manufacturer can then use to check pressure drop and system flowrate. The results from the trials can then be extrapolated to get the ideal carbon mesh size range. Since the impregnation will not significantly affect the pressure-drop, there is no need to produce such at this stage.\n<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-54aa6dd e-con-full animated-slow e-flex elementor-invisible e-con e-child\" data-id=\"54aa6dd\" data-element_type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;fadeIn&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4cdbe61 elementor-widget__width-initial elementor-widget-mobile_extra__width-inherit elementor-widget elementor-widget-heading\" data-id=\"4cdbe61\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Prototype Impregnations and Gas Life Testing\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1468621 elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"1468621\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Once the mesh size has been initially selected, prototype impregnations can be done. It is then possible to check the approximate expected gas life in the laboratory by using refillable containers and testing at a calculated flowrate to replicate the dwell time expected in the final filter. Alternatively, if prototype filter bodies are available, they can be used to check actual filter performance, provided that there is confidence the filters are correctly sealed at all joints and the attachment point.<br> <br>\n \nIn this case, the filling method is very important, to ensure that the fill of carbon is completely level, and there are no voids or channels. Alternative methods include forms of vibration filling, or \u201csnowstorming\u201d. In addition, a measure of compression is required to ensure the carbon bed is properly immobilised in the filter. The benefit of using prototype filter bodies is that the air flow pattern through the filter will accurately represent the final design, taking into account any blind spots, or inherent flow restrictions. The design of the plenum between the filter bed and the attachment point can make a significant difference here.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-844fc0b e-con-full animated-slow e-flex elementor-invisible e-con e-child\" data-id=\"844fc0b\" data-element_type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;fadeIn&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-2276678 e-con-full e-flex e-con e-child\" data-id=\"2276678\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-828826d elementor-widget__width-initial elementor-widget-mobile_extra__width-inherit elementor-widget elementor-widget-heading\" data-id=\"828826d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Performance Testing and Optimization\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fe9eb1f elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"fe9eb1f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Once prototype filter bodies are available, performance against the various gases can be checked. In this case, an OV\/AG classification was requested, so the filters had to be tested against Cyclohexane, as well as representative acid gases such as chlorine and sulphur dioxide. Since the requirement was for NIOSH certification, humidified conditioning of the filters is required prior to some of the tests, and this is always the worst-case scenario for OV, in particular.<br><br>\n \nInitial feedback suggested that the OV performance would fall significantly short of the requirement, however it was also found that there was excess capacity against chlorine and sulphur dioxide. There can be a trade-off in this case, and we were able to quickly produce new prototype carbon samples in our laboratory. The amount of impregnant was reduced, this having the effect of increasing OV performance whilst reducing the acid gas capacity. Two rounds of such testing were required to reach the final ideal carbon for the application.\n\n<br><br>\nIn other scenarios of this type, it may be necessary to adjust the activity level of the carbon, to make changes to its surface chemistry, or to alter relative levels of the different impregnants used in multigas type filters. In all such cases our ability to quickly make samples at laboratory scale will assist the designer.\n\n<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a3da7d9 e-con-full animated-slow e-flex elementor-invisible e-con e-child\" data-id=\"a3da7d9\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;animation&quot;:&quot;fadeIn&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-e707ae2 e-con-full e-flex e-con e-child\" data-id=\"e707ae2\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-60a85e4 elementor-widget elementor-widget-heading\" data-id=\"60a85e4\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\uc624\ub298 Haycarb  \uc640 \ud30c\ud2b8\ub108\uc2ed\uc744 \ub9fa\uc73c\uc138\uc694<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6b4c95d elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"6b4c95d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">\ud544\uc694\ud55c \uc815\ubcf4\ub97c \uc785\ub825\ud574 \uc8fc\uc2dc\uba74 \uc800\ud76c \ud300\uc774 \uadc0\ud558\uc5d0\uac8c \uc801\ud569\ud55c \uc194\ub8e8\uc158\uc744 \ucc3e\ub3c4\ub85d \ub3c4\uc640\ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4.\n\n<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1ffd9d9 elementor-widget elementor-widget-shortcode\" data-id=\"1ffd9d9\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\t\t<div data-elementor-type=\"section\" data-elementor-id=\"10151\" class=\"elementor elementor-10151\" data-elementor-post-type=\"elementor_library\">\n\t\t\t<div class=\"elementor-element elementor-element-184eaf4 e-flex e-con-boxed e-con e-parent\" data-id=\"184eaf4\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d5dc724 elementor-widget-tablet__width-inherit elementor-widget-mobile_extra__width-inherit elementor-widget-mobile__width-inherit elementor-widget elementor-widget-shortcode\" data-id=\"d5dc724\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f1301-o1\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"1301\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/kr\/wp-json\/wp\/v2\/pages\/10789#wpcf7-f1301-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Contact form\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/kr\/wp-json\/wp\/v2\/pages\/10789#wpcf7-f1301-o1\">\n<div style=\"display: none;\">\n<input type=\"hidden\" name=\"_wpcf7\" value=\"1301\" \/>\n<input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.0.6\" \/>\n<input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/>\n<input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f1301-o1\" \/>\n<input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/>\n<input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<input type=\"hidden\" name=\"_wpcf7_recaptcha_response\" value=\"\" \/>\n<\/div>\n<div class=\"row1\">\n\t<div class=\"row-fields1\">\n\t\t<div class=\"field-half1\">\n\t\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"100\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required form-control\" aria-required=\"true\" aria-invalid=\"false\" 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Leveraging its expertise in activated carbon for air purification, Haycarb provided optimized [&hellip;]<\/p>","protected":false},"author":8,"featured_media":11111,"parent":10674,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-10789","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Activated Carbon for Air Purification | Haycarb Activated Carbon<\/title>\n<meta name=\"description\" content=\"Explore how Haycarb\u2019s activated carbon for air purification enhances respirator performance and safety in industrial applications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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