{"id":752,"date":"2026-07-10T19:52:04","date_gmt":"2026-07-10T17:52:04","guid":{"rendered":"https:\/\/www.allenspach-ag.com\/exhaust-air-purification\/voc-concentrator\/"},"modified":"2026-10-23T20:27:29","modified_gmt":"2026-10-23T18:27:29","slug":"voc-concentrator","status":"publish","type":"page","link":"https:\/\/www.allenspach-ag.com\/en\/exhaust-air-purification\/voc-concentrator\/","title":{"rendered":"VOC concentrator"},"content":{"rendered":"<div class=\"et_pb_section_0 et_pb_section et_section_regular et_flex_section\">\n<div class=\"et_pb_row_0 et_pb_row et_flex_row\">\n<div class=\"et_pb_column_0 et_pb_column et_block_column et_pb_css_mix_blend_mode_passthrough et_flex_column_12_24 et_flex_column_12_24_tablet et_flex_column_24_24_phone\">\n<div class=\"et_pb_heading_0 et_pb_heading et_pb_module et_flex_module\"><div class=\"et_pb_heading_container\"><h1 class=\"et_pb_module_header\">VOC concentrator<\/h1><\/div><\/div>\n\n<div class=\"et_pb_text_0 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module leadText\"><div class=\"et_pb_text_inner\"><p>Concentration of volatile organic compounds<\/p>\n<\/div><\/div>\n\n<div class=\"et_pb_text_1 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module\"><div class=\"et_pb_text_inner\"><p>The <b>VOC concentrator<\/b> is used for the energy-efficient treatment of large exhaust air volume flows (<b>10,000\u2013100,000 Nm\u00b3\/h<\/b>) with low concentrations (<b>1,000 mg\/Nm\u00b3<\/b>) of volatile organic compounds (VOCs).<\/p>\n<\/div><\/div>\n\n<ul class=\"et_pb_icon_list_0 et_pb_icon_list et_pb_module et_flex_module\">\n<li class=\"et_pb_icon_list_item_0 et_pb_icon_list_item et_pb_module et_flex_module\"><span class=\"et-pb-icon\">R<\/span><div class=\"et_pb_icon_list_text\">Desorption flow of 1\/8 to 1\/30 of the main exhaust air flow <\/div><\/li>\n<\/ul>\n\n<ul class=\"et_pb_icon_list_1 et_pb_icon_list et_pb_module et_flex_module\">\n<li class=\"et_pb_icon_list_item_1 et_pb_icon_list_item et_pb_module et_flex_module\"><span class=\"et-pb-icon\">R<\/span><div class=\"et_pb_icon_list_text\">8 to 30 times higher VOC concentration in the desorption air stream <\/div><\/li>\n<\/ul>\n\n<ul class=\"et_pb_icon_list_2 et_pb_icon_list et_pb_module et_flex_module\">\n<li class=\"et_pb_icon_list_item_2 et_pb_icon_list_item et_pb_module et_flex_module\"><span class=\"et-pb-icon\">R<\/span><div class=\"et_pb_icon_list_text\">Low energy consumption of the downstream regenerative thermal oxidizer, recuperative thermal oxidizer or catalytic oxidizer (reduces operating costs) <\/div><\/li>\n<\/ul>\n\n<ul class=\"et_pb_icon_list_3 et_pb_icon_list et_pb_module et_flex_module\">\n<li class=\"et_pb_icon_list_item_3 et_pb_icon_list_item et_pb_module et_flex_module\"><span class=\"et-pb-icon\">R<\/span><div class=\"et_pb_icon_list_text\">Smaller design of the downstream oxidation system <\/div><\/li>\n<\/ul>\n\n<div class=\"et_pb_row_1 et_pb_row et_pb_row_nested et_flex_row\">\n<div class=\"et_pb_column_1 et_pb_column et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_8_24 et_flex_column_8_24_tablet et_flex_column_24_24_phone\">\n<div class=\"et_pb_module et_pb_button_module_wrapper et_pb_button_0_wrapper\"><a class=\"et_pb_button_0 et_pb_button et_pb_bg_layout_light et_animated et_pb_module et_flex_module\" href=\"https:\/\/www.allenspach-ag.com\/en\/contact\/\">Discuss your project<\/a><\/div>\n<\/div>\n\n<div class=\"et_pb_column_2 et_pb_column et_flex_column et_pb_column_empty et_pb_css_mix_blend_mode_passthrough et_flex_column_8_24 et_flex_column_8_24_tablet et_flex_column_24_24_phone\"><\/div>\n\n<div class=\"et_pb_column_3 et_pb_column et-last-child et_flex_column et_pb_column_empty et_pb_css_mix_blend_mode_passthrough et_flex_column_8_24 et_flex_column_8_24_tablet et_flex_column_24_24_phone\"><\/div>\n<\/div>\n<\/div>\n\n<div class=\"et_pb_column_4 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_12_24 et_flex_column_12_24_tablet et_flex_column_24_24_phone\">\n<div class=\"et_pb_group_0 et_pb_group et_pb_module et_flex_group et_pb_css_mix_blend_mode_passthrough boxShadow\">\n<div class=\"et_pb_text_2 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module techead\"><div class=\"et_pb_text_inner\"><p>Technical applications of VOC concentrators<\/p>\n<\/div><\/div>\n\n<div class=\"et_pb_row_2 et_pb_row et_pb_row_nested et_flex_row\">\n<div class=\"et_pb_column_5 et_pb_column et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_12_24 et_flex_column_12_24_tablet et_flex_column_24_24_phone\">\n<ul class=\"et_pb_icon_list_4 et_pb_icon_list et_pb_module et_flex_module\">\n<li class=\"et_pb_icon_list_item_4 et_pb_icon_list_item et_pb_module et_flex_module\"><span class=\"et-pb-icon\">\uf576<\/span><div class=\"et_pb_icon_list_text\">Paint and coatings industry<\/div><\/li>\n\n<li class=\"et_pb_icon_list_item_5 et_pb_icon_list_item et_pb_module et_flex_module\"><span class=\"et-pb-icon\">\uf5d2<\/span><div class=\"et_pb_icon_list_text\">Chemical industry<\/div><\/li>\n\n<li class=\"et_pb_icon_list_item_6 et_pb_icon_list_item et_pb_module et_flex_module\"><span class=\"et-pb-icon\">\uf49e<\/span><div class=\"et_pb_icon_list_text\">Packaging industry<\/div><\/li>\n<\/ul>\n<\/div>\n\n<div class=\"et_pb_column_6 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_12_24 et_flex_column_12_24_tablet et_flex_column_24_24_phone\">\n<ul class=\"et_pb_icon_list_5 et_pb_icon_list et_pb_module et_flex_module\">\n<li class=\"et_pb_icon_list_item_7 et_pb_icon_list_item et_pb_module et_flex_module\"><span class=\"et-pb-icon\">\uf72f<\/span><div class=\"et_pb_icon_list_text\">Plastics industry<\/div><\/li>\n\n<li class=\"et_pb_icon_list_item_8 et_pb_icon_list_item et_pb_module et_flex_module\"><span class=\"et-pb-icon\">\uf0ad<\/span><div class=\"et_pb_icon_list_text\">Metal industry<\/div><\/li>\n\n<li class=\"et_pb_icon_list_item_9 et_pb_icon_list_item et_pb_module et_flex_module\"><span class=\"et-pb-icon\">\uf773<\/span><div class=\"et_pb_icon_list_text\">Wastewater treatment plants<\/div><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n\n<div class=\"et_pb_group_carousel_0 et_pb_group_carousel et_pb_group et_pb_module et_pb_group_carousel_arrows_inside et_pb_group_carousel_dots_disabled et_flex_column_18_24 et_flex_column_18_24_tablet et_flex_column_18_24_phone\"><div class=\"et_pb_group_carousel_container\"><div class=\"et_pb_group_carousel_track\"><div class=\"et_pb_group_carousel_slide\"><div class=\"et_pb_group_1 et_pb_group et_pb_module et_flex_group et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_team_member_0 et_pb_team_member et_pb_bg_layout_light et_pb_module et_flex_module et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone personbox shadowBox\"><div class=\"et_pb_team_member_image et-waypoint et_pb_animation_off\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/alexander-krenzin.jpg\" alt=\"Alexander Krenzin\" width=\"648\" height=\"611\" srcset=\"https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/alexander-krenzin.jpg 648w, https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/alexander-krenzin-480x453.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 648px, 100vw\" class=\"wp-image-480\" title=\"Alexander Krenzin\" \/><\/div><div class=\"et_pb_team_member_description\"><h4 class=\"et_pb_module_header\">Alexander Krenzin<\/h4><p class=\"et_pb_member_position\">Management \/ Project Manager<\/p><div class=\"et_pb_team_member_description_content\"><p><a href=\"tel:+41566487053\">+41 56 648 70 53<\/a><br \/><a href=\"mailto:ak@allenspach-ag.ch\">ak@allenspach-ag.ch<\/a><\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"et_pb_group_carousel_slide\"><div class=\"et_pb_group_2 et_pb_group et_pb_module et_flex_group et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_team_member_1 et_pb_team_member et_pb_bg_layout_light et_pb_module et_flex_module et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone personbox shadowBox\"><div class=\"et_pb_team_member_image et-waypoint et_pb_animation_off\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/samuel-werner.jpg\" alt=\"Samuel Werner\" width=\"648\" height=\"611\" srcset=\"https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/samuel-werner.jpg 648w, https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/samuel-werner-480x453.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 648px, 100vw\" class=\"wp-image-484\" title=\"Samuel Werner\" \/><\/div><div class=\"et_pb_team_member_description\"><h4 class=\"et_pb_module_header\">Samuel Werner<\/h4><p class=\"et_pb_member_position\">Managing Director \/ Project Manager<\/p><div class=\"et_pb_team_member_description_content\"><p><a href=\"tel:+41566487052\">+41 56 648 70 52<\/a><br \/><a href=\"mailto:sw@allenspach-ag.ch\">sw@allenspach-ag.ch<\/a><\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"et_pb_group_carousel_slide\"><div class=\"et_pb_group_3 et_pb_group et-last-child et_pb_module et_flex_group et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_team_member_2 et_pb_team_member et_pb_bg_layout_light et_pb_module et_flex_module et_flex_column_24_24 et_flex_column_24_24_tablet et_flex_column_24_24_phone personbox shadowBox\"><div class=\"et_pb_team_member_image et-waypoint et_pb_animation_off\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/josef-stutz.jpg\" alt=\"Josef Stutz\" width=\"648\" height=\"611\" srcset=\"https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/josef-stutz.jpg 648w, https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/josef-stutz-480x453.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 648px, 100vw\" class=\"wp-image-482\" title=\"Josef Stutz\" \/><\/div><div class=\"et_pb_team_member_description\"><h4 class=\"et_pb_module_header\">Josef Stutz<\/h4><p class=\"et_pb_member_position\">Project Manager<\/p><div class=\"et_pb_team_member_description_content\"><p><a href=\"tel:+41566487058\">+41 56 648 70 58<\/a><br \/><a href=\"mailto:js@allenspach-ag.ch\">js@allenspach-ag.ch<\/a><\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><span class=\"et_pb_group_carousel_arrow et_pb_group_carousel_arrow_prev\" role=\"button\" tabindex=\"0\" aria-label=\"Previous slide\"><span class=\"et-pb-icon\">4<\/span><\/span><span class=\"et_pb_group_carousel_arrow et_pb_group_carousel_arrow_next\" role=\"button\" tabindex=\"0\" aria-label=\"Next slide\"><span class=\"et-pb-icon\">5<\/span><\/span><div class=\"et_pb_group_carousel_dots\" style=\"display: none;\"><\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<div class=\"et_pb_section_1 et_pb_section et_section_regular et_flex_section\">\n<div class=\"et_pb_row_3 et_pb_row et_flex_row\">\n<div class=\"et_pb_column_7 et_pb_column et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_2_5 et_flex_column_2_5_tablet et_flex_column_24_24_phone\">\n<div class=\"et_pb_heading_1 et_pb_heading et_pb_module et_flex_module\"><div class=\"et_pb_heading_container\"><h2 class=\"et_pb_module_header\">VOC concentrator<\/h2><\/div><\/div>\n\n<div class=\"et_pb_text_3 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module\"><div class=\"et_pb_text_inner\"><p>The VOC concentrator is used for the energy-efficient treatment of large exhaust air volume flows <strong>(10,000\u2013100,000 Nm\u00b3\/h)<\/strong> with low concentrations (1,000 mg\/Nm\u00b3) of volatile organic compounds (VOCs). The core of the system is a continuously rotating <strong>zeolite adsorber<\/strong>, which captures pollutants from the exhaust air and concentrates them into a significantly smaller exhaust air stream.<br \/>Before entering the concentrator, the exhaust air is cleaned of dust and solid particles via a multi-stage filter system. It then flows through the adsorption zone of the rotor, where the VOCs are bound in the zeolite material. The treated main air stream may be discharged through a stack when the applicable emission limits are met. Outlet concentration depends on the VOC mixture, inlet loading and rotor performance.   <\/p>\n<p>The VOCs adsorbed in the zeolite material are desorbed in the desorption zone using a hot gas stream of 1\/8 to 1\/30 of the main exhaust air flow<\/strong>. This increases the VOC concentration in the hot gas stream accordingly; the concentration factor depends on VOC capture and operating conditions. The high pollutant concentrations lead to an increase in efficiency for a downstream regenerative thermal oxidizer, recuperative thermal oxidizer or catalytic oxidizer.<br \/>By reducing the exhaust air volume flow to be treated, the downstream oxidation system can be designed significantly smaller. This reduces both investment costs and energy consumption and enables economical operation. The concentrated stream may support autothermal operation of the downstream oxidizer when VOC loading and heating value are sufficient.   <\/p>\n<\/div><\/div>\n<\/div>\n\n<div class=\"et_pb_column_8 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_3_5 et_flex_column_3_5_tablet et_flex_column_24_24_phone\">\n<div class=\"et_pb_image_0 et_pb_image et_pb_module et_flex_module\"><a href=\"https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/voc-konzentrator-schema.jpg\" title=\"VOC concentrator\" class=\"et_pb_lightbox_image\" alt=\"VOC concentrator\"><span class=\"et_pb_image_wrap\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/voc-konzentrator-schema.jpg\" alt=\"VOC concentrator\" title=\"VOC concentrator\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/voc-konzentrator-schema.jpg 1280w, https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/voc-konzentrator-schema-980x551.jpg 980w, https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/voc-konzentrator-schema-480x270.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1280px, 100vw\" class=\"wp-image-754\" \/><\/span><\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<div class=\"et_pb_section_2 et_pb_section et_section_regular et_flex_section\">\n<div class=\"et_pb_row_4 et_pb_row et_flex_row\">\n<div class=\"et_pb_column_9 et_pb_column et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_3_5 et_flex_column_3_5_tablet et_flex_column_24_24_phone\">\n<div class=\"et_pb_gallery_0 et_pb_gallery et_pb_bg_layout_light et_pb_slider et_pb_gallery_fullwidth clearfix et_pb_module\" data-auto-rotate=\"off\" data-auto-rotate-speed=\"\"><div class=\"et_pb_gallery_items et_post_gallery clearfix\" data-per_page=\"4\"><div class=\"et_pb_gallery_item et_pb_gallery_item_0_0\"><div class=\"et_pb_gallery_image landscape\" data-per_page=\"4\"><a href=\"https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/voc-konzentrator-2-scaled.jpg\" title=\"VOC concentrator\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2560\" src=\"https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/voc-konzentrator-2-scaled.jpg\" alt=\"VOC concentrator\" class=\"wp-image-755\" srcset=\"https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/voc-konzentrator-2-scaled.jpg 1920w, https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/voc-konzentrator-2-1280x1707.jpg 1280w, https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/voc-konzentrator-2-980x1307.jpg 980w, https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/voc-konzentrator-2-480x640.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1920px, 100vw\" \/><span class=\"et_overlay\" data-icon=\"\" data-icon-tablet=\"\" data-icon-phone=\"\"><\/span><\/a><\/div><\/div><div class=\"et_pb_gallery_item et_pb_gallery_item_0_1\"><div class=\"et_pb_gallery_image landscape\" data-per_page=\"4\"><a href=\"https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/voc-konzentrator-scaled.jpg\" title=\"VOC concentrator\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2560\" src=\"https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/voc-konzentrator-scaled.jpg\" alt=\"VOC concentrator\" class=\"wp-image-756\" srcset=\"https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/voc-konzentrator-scaled.jpg 1920w, https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/voc-konzentrator-1280x1707.jpg 1280w, https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/voc-konzentrator-980x1307.jpg 980w, https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/voc-konzentrator-480x640.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1920px, 100vw\" \/><span class=\"et_overlay\" data-icon=\"\" data-icon-tablet=\"\" data-icon-phone=\"\"><\/span><\/a><\/div><\/div><\/div><\/div>\n<\/div>\n\n<div class=\"et_pb_column_10 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_2_5 et_flex_column_2_5_tablet et_flex_column_24_24_phone\">\n<div class=\"et_pb_heading_2 et_pb_heading et_pb_module et_flex_module\"><div class=\"et_pb_heading_container\"><h2 class=\"et_pb_module_header\">Features of VOC rotor concentrators<\/h2><\/div><\/div>\n\n<div class=\"et_pb_text_4 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module\"><div class=\"et_pb_text_inner\"><ul>\n<li><b>Desorption flow of 1\/8 to 1\/30<\/b> of the main exhaust air flow<\/li>\n<li><b>8 to 30 times higher<\/b> VOC concentration in the desorption air stream<\/li>\n<li><b>Low energy consumption<\/b> of the downstream regenerative thermal oxidizer, recuperative thermal oxidizer or catalytic oxidizer (reduces operating costs)<\/li>\n<li>Smaller design of the downstream oxidation system<\/li>\n<li><b>Direct discharge<\/b> of the treated main air stream when the applicable emission limits are met<\/li>\n<li>Suitable for <b>large exhaust air volume flows<\/b> (<b>10,000\u2013100,000 Nm\u00b3\/h<\/b>) with low VOC concentration (<b>1,000 mg\/Nm\u00b3<\/b>)<\/li>\n<li><b>Continuous rotor operation<\/b> avoids the switching-related pressure fluctuations associated with cyclic adsorber beds<\/li>\n<li>Multi-stage pre-filtration to protect the adsorption material<\/li>\n<li>Especially suitable for <b>painting, coating, and drying processes<\/b><\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<div class=\"et_pb_section_3 et_pb_section et_section_regular et_flex_section\">\n<div class=\"et_pb_row_5 et_pb_row et_flex_row\">\n<div class=\"et_pb_column_11 et_pb_column et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_2_5 et_flex_column_2_5_tablet et_flex_column_24_24_phone\">\n<div class=\"et_pb_heading_3 et_pb_heading et_pb_module et_flex_module\"><div class=\"et_pb_heading_container\"><h2 class=\"et_pb_module_header\">Hydrophobic zeolite<\/h2><\/div><\/div>\n<div class=\"et_pb_text_5 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module\"><div class=\"et_pb_text_inner\"><p>Hydrophobic zeolite adsorbs suitable VOCs while limiting water uptake. This keeps adsorption performance stable even with humid exhaust air and allows reliable regeneration with hot air. Rotor selection and regeneration conditions are matched to the exhaust air composition.<\/p>\n<\/div><\/div>\n<\/div>\n\n<div class=\"et_pb_column_12 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_3_5 et_flex_column_3_5_tablet et_flex_column_24_24_phone\">\n<div class=\"et_pb_image_1 et_pb_image et_pb_module et_flex_module\"><span class=\"et_pb_image_wrap\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/hydrophober-zeolith-scaled.jpg\" alt=\"hydrophobic zeolite\" title=\"hydrophobic zeolite\" width=\"2560\" height=\"1183\" srcset=\"https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/hydrophober-zeolith-scaled.jpg 2560w, https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/hydrophober-zeolith-1280x592.jpg 1280w, https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/hydrophober-zeolith-980x453.jpg 980w, https:\/\/www.allenspach-ag.com\/wp-content\/uploads\/hydrophober-zeolith-480x222.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 2560px, 100vw\" class=\"wp-image-757\" \/><\/span><\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Concentration of volatile organic compounds<\/p>\n","protected":false},"author":1,"featured_media":753,"parent":653,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-752","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.allenspach-ag.com\/en\/wp-json\/wp\/v2\/pages\/752","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.allenspach-ag.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.allenspach-ag.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.allenspach-ag.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.allenspach-ag.com\/en\/wp-json\/wp\/v2\/comments?post=752"}],"version-history":[{"count":4,"href":"https:\/\/www.allenspach-ag.com\/en\/wp-json\/wp\/v2\/pages\/752\/revisions"}],"predecessor-version":[{"id":895,"href":"https:\/\/www.allenspach-ag.com\/en\/wp-json\/wp\/v2\/pages\/752\/revisions\/895"}],"up":[{"embeddable":true,"href":"https:\/\/www.allenspach-ag.com\/en\/wp-json\/wp\/v2\/pages\/653"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.allenspach-ag.com\/en\/wp-json\/wp\/v2\/media\/753"}],"wp:attachment":[{"href":"https:\/\/www.allenspach-ag.com\/en\/wp-json\/wp\/v2\/media?parent=752"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}