{"id":373,"date":"2026-09-29T13:03:41","date_gmt":"2026-09-29T13:03:41","guid":{"rendered":"https:\/\/fenggu-bio.com\/biosafety-cabinet-vhp-decontamination\/"},"modified":"2026-09-29T13:03:41","modified_gmt":"2026-09-29T13:03:41","slug":"biosafety-cabinet-vhp-decontamination","status":"publish","type":"post","link":"https:\/\/fenggu-bio.com\/ru\/biosafety-cabinet-vhp-decontamination\/","title":{"rendered":"\u041a\u0430\u0431\u0438\u043d\u0435\u0442 \u0431\u0438\u043e\u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 VHP: \u0434\u0435\u0437\u0438\u043d\u0444\u0435\u043a\u0446\u0438\u044f: \u0437\u0430\u043c\u0435\u043d\u0430 \u0444\u0443\u043c\u0438\u0433\u0430\u0446\u0438\u0438 \u0444\u043e\u0440\u043c\u0430\u043b\u044c\u0434\u0435\u0433\u0438\u0434\u043e\u043c"},"content":{"rendered":"<style>\n.entry-title,.ast-single-post .entry-header{display:none!important}\n.fg-art{font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,\"Helvetica Neue\",Arial,sans-serif;color:#1e2838;line-height:1.72;max-width:820px;margin:0 auto;padding:0 22px;font-size:16.5px}\n.fg-art .fg-eyebrow{display:inline-block;background:#e3ecfa;color:#003AA1;font-weight:700;font-size:12px;letter-spacing:.7px;padding:5px 13px;border-radius:20px;text-transform:uppercase;margin:34px 0 14px}\n.fg-art h1{font-size:31px;line-height:1.22;color:#002B78;margin:0 0 12px;font-weight:800}\n.fg-art .meta{font-size:13.5px;color:#7a8699;margin:0 0 26px;border-bottom:1px solid #e6ebf3;padding-bottom:18px}\n.fg-art h2{font-size:23px;color:#002B78;margin:38px 0 12px;line-height:1.28}\n.fg-art h3{font-size:18px;color:#003AA1;margin:22px 0 8px}\n.fg-art p{margin:0 0 16px}\n.fg-art .lead{font-size:18px;color:#3a4658}\n.fg-art figure{margin:26px 0}\n.fg-art img{width:100%;border-radius:12px;box-shadow:0 6px 22px rgba(0,58,161,.12);display:block}\n.fg-art svg{width:100%;height:auto;display:block;border-radius:12px}\n.fg-art figcaption{font-size:13px;color:#7a8699;margin-top:9px;text-align:center}\n.fg-art table{border-collapse:collapse;width:100%;margin:22px 0;font-size:14.5px}\n.fg-art th,.fg-art td{border:1px solid #d7dfea;padding:11px 14px;text-align:left;vertical-align:top}\n.fg-art thead th{background:#002B78;color:#fff;font-weight:700}\n.fg-art tbody th{background:#eff4fb;color:#002B78;font-weight:700;width:22%}\n.fg-art tbody tr:nth-child(even) td{background:#f7f9fc}\n.fg-art ul{margin:0 0 16px;padding-left:22px}.fg-art li{margin:7px 0}\n.fg-art .fg-cta{background:linear-gradient(120deg,#002B78,#003AA1);color:#fff;border-radius:14px;padding:30px 28px;margin:38px 0 10px;text-align:center}\n.fg-art .fg-cta h3{color:#fff;font-size:22px;margin:0 0 8px}\n.fg-art .fg-cta p{color:#dce7f7;margin:0 0 18px;font-size:15.5px}\n.fg-art .fg-btn{display:inline-block;background:#EC001B;color:#fff;padding:13px 28px;border-radius:6px;font-weight:600;font-size:15.5px;text-decoration:none;margin:0 6px 8px}\n.fg-art .fg-btn.o{background:transparent;border:2px solid rgba(255,255,255,.7)}\n.fg-art a{color:#003AA1;text-decoration:underline}\n.fg-art .fg-cta a{text-decoration:none;color:#fff}\n@media(max-width:640px){.fg-art h1{font-size:25px}.fg-art th,.fg-art td{padding:9px 10px;font-size:13.5px}}\n<\/style>\n<article class=\"fg-art\">\n<span class=\"fg-eyebrow\">VHP Sterilization &middot; Biosafety Cabinets<\/span><\/p>\n<h1>\u041a\u0430\u0431\u0438\u043d\u0435\u0442 \u0431\u0438\u043e\u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 VHP: \u0434\u0435\u0437\u0438\u043d\u0444\u0435\u043a\u0446\u0438\u044f: \u0437\u0430\u043c\u0435\u043d\u0430 \u0444\u0443\u043c\u0438\u0433\u0430\u0446\u0438\u0438 \u0444\u043e\u0440\u043c\u0430\u043b\u044c\u0434\u0435\u0433\u0438\u0434\u043e\u043c<\/h1>\n<div class=\"meta\">\u041f\u043e \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430\u043c Fenggu Medical Equipment \u00b7 \u0424\u0438\u0437\u0438\u043e\u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0441\u0442\u0435\u0440\u0438\u043b\u0438\u0437\u0430\u0446\u0438\u044f \u0438 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044c \u0437\u0430\u0433\u0440\u044f\u0437\u043d\u0435\u043d\u0438\u044f<\/div>\n<p class=\"lead\">Before a filter change, repair, relocation or agent change, a biosafety cabinet has to be fully decontaminated inside and out &mdash; that isn&#8217;t optional, it&#8217;s the safety precondition for opening the cabinet. For decades this was done almost entirely with <strong>formaldehyde (paraformaldehyde) fumigation<\/strong>, but formaldehyde is carcinogenic, corrosive, leaves a residue that needs neutralizing, and the whole process is slow and cumbersome. More labs are now switching to <strong>biosafety cabinet VHP decontamination<\/strong>. This guide focuses on just that &mdash; why formaldehyde is being phased out, how VHP is set up on a single cabinet, and when it&#8217;s required.<\/p>\n<figure>\n<svg viewbox=\"0 0 760 280\" role=\"img\" aria-label=\"Biosafety cabinet VHP decontamination: sealed sash opening, VHP generator connected to the cabinet's own intake\/exhaust ports, in-place HEPA filter decontamination\">\n<defs><lineargradient id=\"cg\" x1=\"0\" y1=\"0\" x2=\"0\" y2=\"1\"><stop offset=\"0\" stop-color=\"#f6f9fe\"\/><stop offset=\"1\" stop-color=\"#e6eef9\"\/><\/lineargradient>\n<lineargradient id=\"glass\" x1=\"0\" y1=\"0\" x2=\"0\" y2=\"1\"><stop offset=\"0\" stop-color=\"#dcecff\"\/><stop offset=\"1\" stop-color=\"#bcd6f5\"\/><\/lineargradient><\/defs>\n<rect x=\"0\" y=\"0\" width=\"760\" height=\"280\" fill=\"url(#cg)\"\/>\n<rect x=\"230\" y=\"60\" width=\"300\" height=\"150\" rx=\"10\" fill=\"url(#glass)\" stroke=\"#7f9dc6\" stroke-width=\"2\"\/>\n<rect x=\"240\" y=\"70\" width=\"280\" height=\"60\" rx=\"4\" fill=\"#eef5ff\" stroke=\"#5b7cb0\"\/>\n<text x=\"380\" y=\"105\" text-anchor=\"middle\" fill=\"#5a6472\" font-family=\"Segoe UI,Arial,sans-serif\" font-size=\"10\">sealed sash opening (tape \/ plate)<\/text>\n<rect x=\"300\" y=\"30\" width=\"160\" height=\"20\" rx=\"4\" fill=\"#e9f0fb\" stroke=\"#8ea6c8\"\/>\n<text x=\"380\" y=\"44\" text-anchor=\"middle\" fill=\"#003AA1\" font-family=\"Segoe UI,Arial,sans-serif\" font-size=\"10\">cabinet HEPA filter<\/text>\n<rect x=\"60\" y=\"105\" width=\"110\" height=\"66\" rx=\"9\" fill=\"#002B78\"\/>\n<text x=\"115\" y=\"135\" text-anchor=\"middle\" fill=\"#fff\" font-family=\"Segoe UI,Arial,sans-serif\" font-size=\"14\" font-weight=\"700\">VHP<\/text>\n<text x=\"115\" y=\"155\" text-anchor=\"middle\" fill=\"#cfe0ff\" font-family=\"Segoe UI,Arial,sans-serif\" font-size=\"10\">generator<\/text>\n<path d=\"M170 138 H230\" stroke=\"#4f80e6\" stroke-width=\"2.4\"\/><path d=\"M230 132l12 6-12 6z\" fill=\"#4f80e6\"\/>\n<text x=\"600\" y=\"130\" fill=\"#5a6472\" font-family=\"Segoe UI,Arial,sans-serif\" font-size=\"11\">connected to the<\/text>\n<text x=\"600\" y=\"148\" fill=\"#5a6472\" font-family=\"Segoe UI,Arial,sans-serif\" font-size=\"11\">cabinet&#8217;s own ports<\/text>\n<rect x=\"260\" y=\"230\" width=\"240\" height=\"26\" rx=\"5\" fill=\"#EC001B\"\/>\n<text x=\"380\" y=\"247\" text-anchor=\"middle\" fill=\"#fff\" font-family=\"Segoe UI,Arial,sans-serif\" font-size=\"11\" font-weight=\"700\">Cabinet concentration monitored before opening<\/text>\n<\/svg><figcaption>Biosafety cabinet VHP decontamination: once the sash opening is sealed, a VHP generator connects to the cabinet&#8217;s own intake\/exhaust ports, decontaminating the HEPA filter and interior surfaces in place.<\/figcaption><\/figure>\n<h2>Why formaldehyde fumigation is being phased out<\/h2>\n<p>Formaldehyde (usually generated by heating paraformaldehyde) was the standard for biosafety cabinet decontamination for decades, but its drawbacks are well known:<\/p>\n<ul>\n<li><strong>Carcinogenic and corrosive.<\/strong> Formaldehyde is classified as harmful to human health, carries real exposure risk for the operator, and corrodes metal and some other materials;<\/li>\n<li><strong>Residue needs neutralizing.<\/strong> After fumigation the residual formaldehyde has to be neutralized with ammonium bicarbonate or similar &mdash; a cumbersome step, and incomplete neutralization leaves an irritating odor;<\/li>\n<li><strong>Slow.<\/strong> A full formaldehyde fumigation cycle often takes hours to overnight, keeping the cabinet out of service the whole time.<\/li>\n<\/ul>\n<p><strong>VHP (vaporized hydrogen peroxide)<\/strong> is better on nearly every point: low temperature, the only breakdown products are water and oxygen, no neutralization step, and a cycle typically completes in anywhere from tens of minutes to two or three hours &mdash; with a <strong>validatable 6-log kill<\/strong> confirmed by biological indicators. This is the core reason labs are moving from formaldehyde to VHP. For the underlying principle see <a href=\"\/ru\/what-is-vhp-decontamination\/\">\u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u0434\u0435\u0437\u0430\u043a\u0442\u0438\u0432\u0430\u0446\u0438\u044f VHP<\/a>.<\/p>\n<h2>How to VHP-decontaminate a single biosafety cabinet<\/h2>\n<p>Unlike whole-room space decontamination, biosafety cabinet decon targets <strong>one piece of equipment<\/strong>, and the process is more compact:<\/p>\n<table>\n<thead>\n<tr>\n<th>Step<\/th>\n<th>\u0414\u0435\u0442\u0430\u043b\u044c<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th>Seal the sash opening<\/th>\n<td>The cabinet&#8217;s front sash opening is fully sealed with tape or a purpose-built plate, so VHP cannot leak into the room.<\/td>\n<\/tr>\n<tr>\n<th>Connect to cabinet ports<\/th>\n<td>A mobile VHP generator connects via hose to the cabinet&#8217;s <strong>own intake\/exhaust ports<\/strong>, delivering gas directly into the cabinet&#8217;s internal circulation &mdash; not filling the room.<\/td>\n<\/tr>\n<tr>\n<th>In-place HEPA treatment<\/th>\n<td>The cabinet&#8217;s HEPA filter doesn&#8217;t need to be removed &mdash; VHP gas penetrates the filter media directly, which is especially important for safety before a filter change.<\/td>\n<\/tr>\n<tr>\n<th>Concentration and dwell<\/th>\n<td>The cycle holds target concentration and contact time, typically confirmed with biological indicators to a &ge;6-log kill.<\/td>\n<\/tr>\n<tr>\n<th>Aeration and opening<\/th>\n<td>After the cycle, aeration brings residual peroxide down to a safe level (commonly &le;1 ppm) before the seal is removed and work resumes.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>A <strong>\u0440\u0435\u0446\u0438\u0440\u043a\u0443\u043b\u044f\u0446\u0438\u043e\u043d\u043d\u044b\u0439 \u0433\u0435\u043d\u0435\u0440\u0430\u0442\u043e\u0440 VHP<\/strong> fits this workflow best &mdash; it pipes gas directly into the cabinet&#8217;s ports and circulates it, rather than passive diffusion. See <a href=\"\/ru\/products\/recirculating-vhp-generator\/\">\u0413\u0435\u043d\u0435\u0440\u0430\u0442\u043e\u0440 VHP \u0441 \u0440\u0435\u0446\u0438\u0440\u043a\u0443\u043b\u044f\u0446\u0438\u0435\u0439<\/a>. Class II cabinet types (A1\/A2\/B1\/B2) differ in exhaust configuration, so connection points should be confirmed against the specific cabinet model before starting.<\/p>\n<h2>When biosafety cabinet VHP decontamination is required<\/h2>\n<ul>\n<li><strong>Before a HEPA filter change<\/strong> &mdash; the filter has trapped hazardous particulate, and removing it without decon carries the highest risk;<\/li>\n<li><strong>Before major repair or replacing key components<\/strong> &mdash; any maintenance that breaches the cabinet&#8217;s sealed structure needs decon first;<\/li>\n<li><strong>Before relocating the cabinet<\/strong> &mdash; decontamination and certification are typically required before a cabinet leaves its original lab;<\/li>\n<li><strong>Before changing the biological agent<\/strong> &mdash; to prevent residue from the previous agent interfering with the next study;<\/li>\n<li><strong>Periodic certification requirements<\/strong> &mdash; some regulations or institutions require periodic decontamination validation for biosafety cabinets.<\/li>\n<\/ul>\n<figure>\n<img width=\"1200\" height=\"900\" decoding=\"async\" src=\"\/wp-content\/uploads\/site\/vhp-circulation-raw.jpg\" alt=\"Fenggu recirculating VHP generator used for in-place decontamination of a biosafety cabinet's interior\"><figcaption>A Fenggu recirculating VHP generator &mdash; connects directly to a biosafety cabinet&#8217;s intake\/exhaust ports for in-place decontamination of the HEPA filter and interior surfaces.<\/figcaption><\/figure>\n<h2>\u0427\u0430\u0441\u0442\u043e \u0437\u0430\u0434\u0430\u0432\u0430\u0435\u043c\u044b\u0435 \u0432\u043e\u043f\u0440\u043e\u0441\u044b<\/h2>\n<p><strong>Does the HEPA filter need to be removed for VHP decontamination?<\/strong><br \/>No. VHP gas penetrates HEPA filter media directly for in-place decontamination &mdash; this is exactly why it&#8217;s safer than removing and wiping the filter.<\/p>\n<p><strong>How long does a cycle take?<\/strong><br \/>Much faster than formaldehyde fumigation &mdash; typically tens of minutes to two or three hours for the full cycle including aeration, depending on cabinet volume and cycle parameters.<\/p>\n<p><strong>Can the cabinet be used right after decontamination?<\/strong><br \/>Only once the aeration step has brought residual peroxide down to a safe level and the seal is removed; the exact wait time depends on cabinet model and ventilation.<\/p>\n<div class=\"fg-cta\">\n<h3>Need to decontaminate a biosafety cabinet before filter change or relocation?<\/h3>\n<p>Tell us your cabinet model, the reason for decontamination and your timeline, and Fenggu will configure a targeted VHP decontamination approach &mdash; sealing, port connection, cycle and validation designed as one.<\/p>\n<p><a class=\"fg-btn\" href=\"\/ru\/products\/recirculating-vhp-generator\/\">\u0412\u0438\u0434 \u0440\u0435\u0446\u0438\u0440\u043a\u0443\u043b\u044f\u0446\u0438\u043e\u043d\u043d\u043e\u0433\u043e \u0433\u0435\u043d\u0435\u0440\u0430\u0442\u043e\u0440\u0430 VHP<\/a><br \/>\n<a class=\"fg-btn o\" href=\"\/ru\/contact\/\">\u041f\u043e\u0433\u043e\u0432\u043e\u0440\u0438\u0442\u0435 \u0441 \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u043e\u043c<\/a>\n<\/div>\n<\/article>","protected":false},"excerpt":{"rendered":"<p>VHP Sterilization &middot; Biosafety Cabinets Biosafety Cabinet VHP Decontamination: Replacing Formaldehyde Fumigation By Fenggu Medical Equipment &middot; Pharmaceutical Sterilization &amp; [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-373","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/fenggu-bio.com\/ru\/wp-json\/wp\/v2\/posts\/373","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fenggu-bio.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fenggu-bio.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/fenggu-bio.com\/ru\/wp-json\/wp\/v2\/comments?post=373"}],"version-history":[{"count":0,"href":"https:\/\/fenggu-bio.com\/ru\/wp-json\/wp\/v2\/posts\/373\/revisions"}],"wp:attachment":[{"href":"https:\/\/fenggu-bio.com\/ru\/wp-json\/wp\/v2\/media?parent=373"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fenggu-bio.com\/ru\/wp-json\/wp\/v2\/categories?post=373"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fenggu-bio.com\/ru\/wp-json\/wp\/v2\/tags?post=373"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}