{"id":481,"date":"2026-10-19T04:42:13","date_gmt":"2026-10-19T04:42:13","guid":{"rendered":"https:\/\/fenggu-bio.com\/?page_id=481"},"modified":"2026-10-19T04:42:13","modified_gmt":"2026-10-19T04:42:13","slug":"vhp-sterilization-equipment","status":"publish","type":"page","link":"https:\/\/fenggu-bio.com\/es\/products\/vhp-sterilization-equipment\/","title":{"rendered":"VHP Equipo de esterilizaci\u00f3n"},"content":{"rendered":"<style>\n.entry-title,.ast-single-post .entry-header{display:none!important}\n.fg-full{width:100vw;position:relative;left:50%;right:50%;margin-left:-50vw;margin-right:-50vw}\n.fg-wrap{max-width:1160px;margin:0 auto;padding:0 24px}\n.fg-page{font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,\"Helvetica Neue\",Arial,\"PingFang SC\",\"Microsoft YaHei\",sans-serif;color:#1e2838;line-height:1.6}\n.fg-page h2{font-size:31px;color:#002B78;margin:0 0 10px;line-height:1.22}\n.fg-lead{font-size:16.5px;color:#4a5568;max-width:820px}\n.fg-sec{padding:64px 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p{font-size:13px;margin:0 0 14px}\n.fg-card .go{font-size:13.5px;font-weight:600;color:#003AA1;text-decoration:none;margin-top:auto}\n.fg-card .go:hover{text-decoration:underline}\n.fg-card .soon{font-size:12.5px;color:#94a3b8;margin-top:auto}\n.fg-cta{background:linear-gradient(rgba(0,22,60,.9),rgba(0,35,100,.9)),url(\/wp-content\/uploads\/site\/scene3.jpg) center\/cover;color:#fff;text-align:center}\n.fg-cta h2{color:#fff;font-size:32px}\n.fg-cta p{color:#dce7f7;font-size:17px;max-width:620px;margin:8px auto 28px}\n@media(max-width:900px){.fg-grid{grid-template-columns:1fr 1fr}.fg-phero h1{font-size:31px}.fg-page h2{font-size:22px}}\n@media(max-width:560px){.fg-grid{grid-template-columns:1fr}}\n<\/style>\n<style>\n.fg-tbl{overflow-x:auto;margin:22px 0 0;border:1px solid #dbe3f0;border-radius:11px;background:#fff}\n.fg-tbl table{width:100%;border-collapse:collapse;font-size:14px;min-width:760px;margin:0}\n.fg-tbl th{background:#002B78;color:#fff;text-align:left;padding:12px 14px;font-weight:600;border:0}\n.fg-tbl td{padding:11px 14px;border:0;border-top:1px solid #e6ecf5;vertical-align:top;color:#1e2838}\n.fg-tbl tr:nth-child(even) td{background:#f7f9fd}\n.fg-tbl td .mdl{font-family:Consolas,monospace;font-size:12.5px;font-weight:700;color:#EC001B;white-space:nowrap}\n.fg-note{font-size:13px;color:#5a6472;margin:12px 0 0}\n.fg-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:24px}\n.fg-step{background:#fff;border:1px solid #dbe3f0;border-radius:11px;padding:20px}\n.fg-step b{display:block;font-size:12px;color:#EC001B;letter-spacing:.6px;text-transform:uppercase;margin-bottom:6px}\n.fg-step h3{font-size:16.5px;color:#002B78;margin:0 0 6px}\n.fg-step p{font-size:13.5px;color:#5a6472;margin:0}\n.fg-pick{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}\n.fg-pick div{background:#fff;border-left:4px solid #003AA1;border-radius:0 10px 10px 0;padding:16px 18px;box-shadow:0 2px 12px rgba(0,58,161,.05)}\n.fg-pick h3{font-size:15.5px;color:#002B78;margin:0 0 6px}\n.fg-pick p{font-size:13.5px;color:#4a5568;margin:0}\n.fg-pick a{color:#003AA1;font-weight:600;text-decoration:none}\n.fg-two{display:grid;grid-template-columns:1fr 1fr;gap:36px;margin-top:24px}\n.fg-two ul{margin:0;padding-left:20px;font-size:15px;color:#1e2838}\n.fg-two li{margin-bottom:9px}\n.fg-two a{color:#003AA1;font-weight:600;text-decoration:none}\n.fg-faq{max-width:880px;margin-top:20px}\n.fg-faq details{background:#fff;border:1px solid #dbe3f0;border-radius:10px;margin-bottom:12px;padding:0 20px}\n.fg-faq summary{cursor:pointer;font-weight:600;color:#002B78;font-size:16px;padding:16px 0;list-style:none}\n.fg-faq summary::-webkit-details-marker{display:none}\n.fg-faq summary:after{content:\"+\";float:right;color:#003AA1;font-size:20px;line-height:1}\n.fg-faq details[open] summary:after{content:\"2212\"}\n.fg-faq details p{font-size:15px;color:#4a5568;margin:0 0 16px}\n.fg-faq a{color:#003AA1}\n@media(max-width:900px){.fg-steps{grid-template-columns:1fr 1fr}.fg-pick,.fg-two{grid-template-columns:1fr}}\n@media(max-width:560px){.fg-steps{grid-template-columns:1fr}}\n<\/style>\n<div class=\"fg-page\">\n<p><!-- HERO --><\/p>\n<section class=\"fg-full fg-phero\">\n<div class=\"fg-wrap\">\n<div class=\"fg-crumb\"><a href=\"\/\">Home<\/a> &rsaquo; <a href=\"\/products\/\">Products<\/a> &rsaquo; VHP Sterilization Equipment<\/div>\n<p>  <span class=\"fg-eyebrow\">VHP Sterilization<\/span><\/p>\n<h1>VHP Sterilizers &amp; Hydrogen Peroxide Generators<\/h1>\n<p>Vaporized hydrogen peroxide (VHP) bio-decontamination equipment for pharmaceutical, biotech, hospital and biosafety facilities \u2014 mobile room sterilizers, HVAC-integrated systems, equipment generators, VHP pass boxes and airlocks, designed and built by Fenggu.<\/p>\n<div style=\"margin-top:26px\"><a class=\"fg-btn fg-btn-p\" href=\"\/contact\/\">Request a Quote<\/a><a class=\"fg-btn fg-btn-g\" href=\"#compare\" style=\"background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.35)\">Compare Models<\/a><\/div>\n<\/div>\n<\/section>\n<p><!-- INTRO --><\/p>\n<section class=\"fg-sec\">\n<div class=\"fg-wrap\">\n  <span class=\"fg-tag\">Overview<\/span><\/p>\n<h2>One Technology, Matched to What You Need to Decontaminate<\/h2>\n<p class=\"fg-lead\">A VHP generator flash-vaporizes a 30\u201335% hydrogen peroxide solution and holds the vapor in a sealed space long enough to inactivate bacteria, spores, fungi and viruses on exposed surfaces. Afterwards the peroxide is broken down into water and oxygen. The chemistry is the same across the Fenggu range; what differs is the target \u2014 a whole room, a cleanroom suite and its ductwork, the inside of a freeze dryer, a filter housing, or the materials passing into a Grade A\/B zone.<\/p>\n<p class=\"fg-lead\" style=\"margin-top:12px\">Our VHP systems are specified for a \u22656-log reduction of <em>Geobacillus stearothermophilus<\/em> spores, subject to cycle validation, and for aeration to \u22641 ppm residual hydrogen peroxide before re-entry or door release.<\/p>\n<p><!-- ROOM & FACILITY --><\/p>\n<div class=\"fg-cat\" id=\"rooms\" style=\"margin-top:44px\">\n<div class=\"fg-shead\">\n    <svg viewBox=\"0 0 24 24\"><path d=\"M3 21V9l9-6 9 6v12\"\/><path d=\"M9 21v-6h6v6\"\/><\/svg><\/p>\n<h2>Rooms, Suites &amp; Large Spaces<\/h2>\n<p><span class=\"cnt\">3 systems<\/span>\n  <\/div>\n<div class=\"fg-grid\">\n<div class=\"fg-card has-img\">\n<div class=\"fg-card-img\"><img loading=\"lazy\" decoding=\"async\" src=\"\/wp-content\/uploads\/site\/cutout-vhpm500.png\" alt=\"Fenggu FG-VHP-M500 mobile VHP room sterilizer\" width=\"675\" height=\"900\" loading=\"lazy\"><\/div>\n<p><span class=\"mdl\">FG-VHP-M500<\/span><\/p>\n<h3>Mobile VHP Room Sterilizer<\/h3>\n<p>Wheeled generator for rooms up to 300 m\u00b3. 1\u201340 g\/min injection, \u2265500 m\u00b3\/h airflow, with remote and scheduled start.<\/p>\n<p><a class=\"go\" href=\"\/products\/mobile-vhp-room-sterilizer\/\">View details \u2192<\/a><\/div>\n<div class=\"fg-card has-img\">\n<div class=\"fg-card-img\"><img loading=\"lazy\" decoding=\"async\" src=\"\/wp-content\/uploads\/site\/cutout-vhp.jpg\" alt=\"Fenggu FG-VHP-C1000 HVAC-integrated VHP system\" width=\"900\" height=\"675\" loading=\"lazy\"><\/div>\n<p><span class=\"mdl\">FG-VHP-C1000 \/ C2000<\/span><\/p>\n<h3>HVAC-Integrated VHP System<\/h3>\n<p>Fixed system coupled to the air-handling unit; treats a cleanroom suite and its ductwork. Standard 1,000 m\u00b3 and 2,000 m\u00b3.<\/p>\n<p><a class=\"go\" href=\"\/products\/hvac-integrated-vhp-system\/\">View details \u2192<\/a><\/div>\n<div class=\"fg-card has-img\">\n<div class=\"fg-card-img\"><img loading=\"lazy\" decoding=\"async\" src=\"\/wp-content\/uploads\/site\/ahp-fog-official.png\" alt=\"Fenggu FG-AHP-F300 aerosolized hydrogen peroxide dry fog machine\" width=\"1268\" height=\"713\" loading=\"lazy\"><\/div>\n<p><span class=\"mdl\">FG-AHP-F300<\/span><\/p>\n<h3>Aerosolized H\u2082O\u2082 (aHP) Fogging Machine<\/h3>\n<p>Dry-fog alternative with 1\u20135 \u03bcm droplets; \u2264300 m\u00b3 per unit, networkable for spaces up to 5,000 m\u00b3.<\/p>\n<p><a class=\"go\" href=\"\/products\/ahp-fogging-machine\/\">View details \u2192<\/a><\/div>\n<\/p><\/div>\n<\/div>\n<p><!-- EQUIPMENT INTERIORS --><\/p>\n<div class=\"fg-cat\" id=\"equipment\">\n<div class=\"fg-shead\">\n    <svg viewBox=\"0 0 24 24\"><rect x=\"4\" y=\"3\" width=\"16\" height=\"18\" rx=\"2\"\/><circle cx=\"12\" cy=\"12\" r=\"4\"\/><\/svg><\/p>\n<h2>Equipment Interiors &amp; Filter Housings<\/h2>\n<p><span class=\"cnt\">3 systems<\/span>\n  <\/div>\n<div class=\"fg-grid\">\n<div class=\"fg-card has-img\">\n<div class=\"fg-card-img\"><img loading=\"lazy\" decoding=\"async\" src=\"\/wp-content\/uploads\/site\/vhp-circulation-raw.jpg\" alt=\"Fenggu FG-VHP-GL recirculating VHP generator\" width=\"675\" height=\"900\" loading=\"lazy\"><\/div>\n<p><span class=\"mdl\">FG-VHP-GL<\/span><\/p>\n<h3>Recirculating VHP Generator<\/h3>\n<p>Closed-loop connection to biosafety cabinets, lyophilizers, centrifuges, fermenters and tunnel ovens. Full cycle &lt;180 min.<\/p>\n<p><a class=\"go\" href=\"\/products\/recirculating-vhp-generator\/\">View details \u2192<\/a><\/div>\n<div class=\"fg-card has-img\">\n<div class=\"fg-card-img\"><img loading=\"lazy\" decoding=\"async\" src=\"\/wp-content\/uploads\/site\/cutout-vhpgenerator.jpg\" alt=\"Fenggu FG-VHP-G pulsed-vacuum VHP generator\" width=\"675\" height=\"900\" loading=\"lazy\"><\/div>\n<p><span class=\"mdl\">FG-VHP-G<\/span><\/p>\n<h3>Pulsed-Vacuum VHP Generator<\/h3>\n<p>Alternating vacuum and pressure pulses drive vapor into complex interiors \u2014 for equipment without SIP capability.<\/p>\n<p><a class=\"go\" href=\"\/products\/pulsed-vacuum-vhp-generator\/\">View details \u2192<\/a><\/div>\n<div class=\"fg-card has-img\">\n<div class=\"fg-card-img\"><img loading=\"lazy\" decoding=\"async\" src=\"\/wp-content\/uploads\/site\/cutout-vhpbibo.jpg\" alt=\"Fenggu FG-VHP-BIBO VHP sterilizer for BIBO filter housings\" width=\"673\" height=\"900\" loading=\"lazy\"><\/div>\n<p><span class=\"mdl\">FG-VHP-BIBO<\/span><\/p>\n<h3>VHP BIBO Sterilizer<\/h3>\n<p>In-situ decontamination of bag-in\/bag-out HEPA housings (\u226430 m\u00b3) before a filter change, with catalytic aeration to \u22641 ppm.<\/p>\n<p><a class=\"go\" href=\"\/products\/vhp-bibo-sterilizer\/\">View details \u2192<\/a><\/div>\n<\/p><\/div>\n<\/div>\n<p><!-- MATERIAL TRANSFER --><\/p>\n<div class=\"fg-cat\" id=\"transfer\">\n<div class=\"fg-shead\">\n    <svg viewBox=\"0 0 24 24\"><rect x=\"3\" y=\"6\" width=\"18\" height=\"12\" rx=\"2\"\/><path d=\"M12 6v12\"\/><\/svg><\/p>\n<h2>Material Transfer into Grade A\/B<\/h2>\n<p><span class=\"cnt\">4 systems<\/span>\n  <\/div>\n<div class=\"fg-grid\">\n<div class=\"fg-card has-img\">\n<div class=\"fg-card-img\"><img loading=\"lazy\" decoding=\"async\" src=\"\/wp-content\/uploads\/site\/cutout-vhppassbox.jpg\" alt=\"Fenggu FG-PB-VHP VHP pass box\" width=\"675\" height=\"900\" loading=\"lazy\"><\/div>\n<p><span class=\"mdl\">FG-PB-VHP<\/span><\/p>\n<h3>VHP Pass Box<\/h3>\n<p>Wall-mounted interlocked chamber with integrated VHP and desiccant-wheel dehumidification; H14 HEPA on inlet and outlet.<\/p>\n<p><a class=\"go\" href=\"\/products\/vhp-pass-box\/\">View details \u2192<\/a><\/div>\n<div class=\"fg-card has-img\">\n<div class=\"fg-card-img\"><img loading=\"lazy\" decoding=\"async\" src=\"\/wp-content\/uploads\/site\/cutout-fg-pb-vhpa.jpg\" alt=\"Fenggu FG-PB-VHPA automatic-door VHP pass box\" width=\"675\" height=\"900\" loading=\"lazy\"><\/div>\n<p><span class=\"mdl\">FG-PB-VHPA<\/span><\/p>\n<h3>Automatic-Door VHP Pass Box<\/h3>\n<p>Powered sliding doors with electromagnetic interlocks for high-throughput transfer lines.<\/p>\n<p><a class=\"go\" href=\"\/products\/automatic-door-vhp-pass-box\/\">View details \u2192<\/a><\/div>\n<div class=\"fg-card has-img\">\n<div class=\"fg-card-img\"><img loading=\"lazy\" decoding=\"async\" src=\"\/wp-content\/uploads\/site\/cutout-fg-pb-vhpl.jpg\" alt=\"Fenggu FG-PB-VHPL floor-standing VHP pass box\" width=\"675\" height=\"900\" loading=\"lazy\"><\/div>\n<p><span class=\"mdl\">FG-PB-VHPL<\/span><\/p>\n<h3>Floor-Standing VHP Pass Box<\/h3>\n<p>Floor-level chamber for trolleys, drums and bulky items that cannot tolerate heat treatment.<\/p>\n<p><a class=\"go\" href=\"\/products\/floor-standing-vhp-pass-box\/\">View details \u2192<\/a><\/div>\n<div class=\"fg-card has-img\">\n<div class=\"fg-card-img\"><img loading=\"lazy\" decoding=\"async\" src=\"\/wp-content\/uploads\/site\/cutout-airlock.jpg\" alt=\"Fenggu FG-VHP-AL250 airlock VHP sterilization system\" width=\"610\" height=\"900\" loading=\"lazy\"><\/div>\n<p><span class=\"mdl\">FG-VHP-AL250<\/span><\/p>\n<h3>Airlock VHP Sterilization System<\/h3>\n<p>A material airlock with built-in VHP for loads too large for a pass box. Full cycle &lt;60 min.<\/p>\n<p><a class=\"go\" href=\"\/products\/airlock-vhp-sterilization\/\">View details \u2192<\/a><\/div>\n<\/p><\/div>\n<p class=\"fg-note\">VHP is also built into our <a href=\"\/products\/aseptic-filling-isolator\/\">aseptic filling isolator (FG-ISO-F)<\/a>, and the <a href=\"\/products\/sterility-test-isolator\/\">sterility test isolator (FG-ISO-AF)<\/a> has a reserved VHP generator port.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<p><!-- COMPARE --><\/p>\n<section class=\"fg-sec alt\" id=\"compare\">\n<div class=\"fg-wrap\">\n  <span class=\"fg-tag\">Comparison<\/span><\/p>\n<h2>VHP Systems at a Glance<\/h2>\n<p class=\"fg-lead\">Key published figures for each model. Cycle times depend on the load, volume and validated cycle; confirm them with our engineers before using them in a validation document.<\/p>\n<div class=\"fg-tbl\">\n<table>\n<thead>\n<tr>\n<th>Model<\/th>\n<th>Treats<\/th>\n<th>Capacity<\/th>\n<th>VHP concentration<\/th>\n<th>Cycle \/ aeration<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span class=\"mdl\">FG-VHP-M500<\/span><\/td>\n<td>Rooms, labs, animal facilities<\/td>\n<td>\u2264300 m\u00b3; 1\u201340 g\/min<\/td>\n<td>Set by validated cycle<\/td>\n<td>Set by room size and validation<\/td>\n<\/tr>\n<tr>\n<td><span class=\"mdl\">FG-VHP-C1000<\/span><\/td>\n<td>Cleanroom suites + ductwork<\/td>\n<td>1,000 m\u00b3<\/td>\n<td>150\u2013800 ppm<\/td>\n<td>Aeration \u22641 h<\/td>\n<\/tr>\n<tr>\n<td><span class=\"mdl\">FG-VHP-C2000<\/span><\/td>\n<td>Cleanroom suites + ductwork<\/td>\n<td>2,000 m\u00b3 (3,000 m\u00b3+ on project basis)<\/td>\n<td>150\u2013800 ppm<\/td>\n<td>Aeration \u22641.5 h<\/td>\n<\/tr>\n<tr>\n<td><span class=\"mdl\">FG-AHP-F300<\/span><\/td>\n<td>Large, complex spaces (dry fog)<\/td>\n<td>\u2264300 m\u00b3 per unit; networkable to 5,000 m\u00b3<\/td>\n<td>Aerosol, 1\u20135 \u03bcm droplets<\/td>\n<td>Set by validated cycle<\/td>\n<\/tr>\n<tr>\n<td><span class=\"mdl\">FG-VHP-GL<\/span><\/td>\n<td>BSCs, lyophilizers, centrifuges, fermenters, tunnel ovens<\/td>\n<td>Connected equipment<\/td>\n<td>300\u2013700 ppm<\/td>\n<td>Full cycle &lt;180 min; aeration \u22642.5 h<\/td>\n<\/tr>\n<tr>\n<td><span class=\"mdl\">FG-VHP-G<\/span><\/td>\n<td>Complex interiors without SIP<\/td>\n<td>Connected equipment<\/td>\n<td>150\u2013200 ppm<\/td>\n<td>Set by validated cycle<\/td>\n<\/tr>\n<tr>\n<td><span class=\"mdl\">FG-VHP-BIBO<\/span><\/td>\n<td>BIBO HEPA filter housings<\/td>\n<td>\u226430 m\u00b3<\/td>\n<td>\u224830 ppm for \u224840 min<\/td>\n<td>Catalytic aeration to \u22641 ppm<\/td>\n<\/tr>\n<tr>\n<td><span class=\"mdl\">FG-PB-VHP \/ VHPA \/ VHPL<\/span><\/td>\n<td>Materials entering Grade A\/B<\/td>\n<td>Chamber built to load<\/td>\n<td>300\u2013500 ppm<\/td>\n<td>Set by validated cycle<\/td>\n<\/tr>\n<tr>\n<td><span class=\"mdl\">FG-VHP-AL250<\/span><\/td>\n<td>Large loads via airlock<\/td>\n<td>Room built to layout<\/td>\n<td>300\u2013700 ppm<\/td>\n<td>Full cycle &lt;60 min; aeration \u22641 h<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"fg-note\">All VHP models: \u22656-log reduction (subject to validation); residual \u22641 ppm after aeration; 30\u201335% hydrogen peroxide sterilant.<\/p>\n<\/div>\n<\/section>\n<p><!-- HOW TO CHOOSE --><\/p>\n<section class=\"fg-sec\">\n<div class=\"fg-wrap\">\n  <span class=\"fg-tag\">Selection Guide<\/span><\/p>\n<h2>Which VHP System Do You Need?<\/h2>\n<p class=\"fg-lead\">Start from what has to be decontaminated and how often, not from the generator.<\/p>\n<div class=\"fg-pick\">\n<div>\n<h3>Several rooms, treated occasionally<\/h3>\n<p>One <a href=\"\/products\/mobile-vhp-room-sterilizer\/\">mobile VHP sterilizer<\/a> moved from room to room is usually the most economical choice. See <a href=\"\/sizing-mobile-vhp-generator-room\/\">how to size a mobile generator<\/a>.<\/p>\n<\/div>\n<div>\n<h3>A whole suite, treated on a routine schedule<\/h3>\n<p>An <a href=\"\/products\/hvac-integrated-vhp-system\/\">HVAC-integrated system<\/a> doses through the AHU and reaches the ductwork as well. Compare <a href=\"\/vhp-generator-portable-vs-integrated\/\">portable vs integrated<\/a>.<\/p>\n<\/div>\n<div>\n<h3>The inside of a freeze dryer, BSC or fermenter<\/h3>\n<p>Use a <a href=\"\/products\/recirculating-vhp-generator\/\">recirculating generator<\/a>; for equipment without SIP and with complex internal passages, a <a href=\"\/products\/pulsed-vacuum-vhp-generator\/\">pulsed-vacuum generator<\/a>.<\/p>\n<\/div>\n<div>\n<h3>A HEPA filter change in a containment area<\/h3>\n<p>Decontaminate the housing in place first with the <a href=\"\/products\/vhp-bibo-sterilizer\/\">VHP BIBO sterilizer<\/a>.<\/p>\n<\/div>\n<div>\n<h3>Materials moving into Grade A\/B every day<\/h3>\n<p>A <a href=\"\/products\/vhp-pass-box\/\">VHP pass box<\/a> for tools and small items; the <a href=\"\/products\/floor-standing-vhp-pass-box\/\">floor-standing version<\/a> for trolleys; an <a href=\"\/products\/airlock-vhp-sterilization\/\">airlock<\/a> for pallets and large loads.<\/p>\n<\/div>\n<div>\n<h3>Large or irregular spaces where vapor is hard to manage<\/h3>\n<p>Networked <a href=\"\/products\/ahp-fogging-machine\/\">aHP dry-fog units<\/a> are an alternative. See <a href=\"\/vaporized-vs-aerosolized-hydrogen-peroxide\/\">vaporized vs aerosolized H\u2082O\u2082<\/a>.<\/p>\n<\/div><\/div>\n<\/div>\n<\/section>\n<p><!-- HOW IT WORKS --><\/p>\n<section class=\"fg-sec alt\">\n<div class=\"fg-wrap\">\n  <span class=\"fg-tag\">How It Works<\/span><\/p>\n<h2>The Four Phases of a VHP Cycle<\/h2>\n<p class=\"fg-lead\">Every Fenggu VHP system runs the same basic sequence under PLC control, with temperature, humidity and H\u2082O\u2082 concentration monitored throughout. <a href=\"\/how-vhp-generator-works\/\" style=\"color:#003AA1;font-weight:600\">More on how a VHP generator works \u2192<\/a><\/p>\n<div class=\"fg-steps\">\n<div class=\"fg-step\"><b>Phase 1<\/b><\/p>\n<h3>Dehumidification<\/h3>\n<p>The space is dried so the vapor can reach a useful concentration without condensing.<\/p>\n<\/div>\n<div class=\"fg-step\"><b>Phase 2<\/b><\/p>\n<h3>Conditioning<\/h3>\n<p>H\u2082O\u2082 is injected at a high rate to bring the space up to the target concentration quickly.<\/p>\n<\/div>\n<div class=\"fg-step\"><b>Phase 3<\/b><\/p>\n<h3>Decontamination<\/h3>\n<p>Concentration is held for the validated exposure time to achieve the required log reduction.<\/p>\n<\/div>\n<div class=\"fg-step\"><b>Phase 4<\/b><\/p>\n<h3>Aeration<\/h3>\n<p>Peroxide is removed or catalytically decomposed into water and oxygen, down to \u22641 ppm.<\/p>\n<\/div><\/div>\n<\/div>\n<\/section>\n<p><!-- WHY + GUIDES --><\/p>\n<section class=\"fg-sec\">\n<div class=\"fg-wrap\">\n<div class=\"fg-two\" style=\"margin-top:0\">\n<div>\n      <span class=\"fg-tag\">Why Fenggu<\/span><\/p>\n<h2 style=\"font-size:25px\">Built for Validated Pharmaceutical Use<\/h2>\n<ul>\n<li>Siemens PLC control with real-time monitoring of temperature, humidity and H\u2082O\u2082 concentration<\/li>\n<li>SUS304 \/ SUS316L construction; H14 HEPA filtration on pass boxes and airlocks<\/li>\n<li>Audit trail and electronic records designed for FDA 21 CFR Part 11 on the HVAC-integrated system<\/li>\n<li>On-site commissioning, support for biological indicator (BI) validation, maintenance and operator training for the equipment we supply<\/li>\n<li>Pass box, airlock and isolator sizes configured to your layout<\/li>\n<\/ul><\/div>\n<div>\n      <span class=\"fg-tag\">Guides<\/span><\/p>\n<h2 style=\"font-size:25px\">Learn More About VHP<\/h2>\n<ul>\n<li><a href=\"\/what-is-vhp-decontamination\/\">What is VHP decontamination?<\/a><\/li>\n<li><a href=\"\/vhp-validation-biological-indicators\/\">VHP validation with biological indicators<\/a><\/li>\n<li><a href=\"\/vhp-cycle-development-qualification\/\">VHP cycle development and qualification<\/a><\/li>\n<li><a href=\"\/vhp-concentration-humidity-condensation\/\">Concentration, humidity and condensation<\/a><\/li>\n<li><a href=\"\/vhp-vs-ethylene-oxide\/\">VHP vs ethylene oxide<\/a><\/li>\n<li><a href=\"\/case-study-hvac-vhp-cspc-megalith\/\">Case study: HVAC-integrated VHP at an mRNA facility<\/a><\/li>\n<\/ul><\/div>\n<\/p><\/div>\n<\/div>\n<\/section>\n<p><!-- FAQ --><\/p>\n<section class=\"fg-sec alt\">\n<div class=\"fg-wrap\">\n  <span class=\"fg-tag\">FAQ<\/span><\/p>\n<h2>VHP Equipment FAQ<\/h2>\n<div class=\"fg-faq\">\n<details>\n<summary>What is the difference between a VHP generator and a VHP sterilizer?<\/summary>\n<p>In practice the terms are used for the same kind of equipment: a unit that vaporizes hydrogen peroxide and controls its concentration in an enclosed space. &#8220;Sterilizer&#8221; is common in product names; in pharmaceutical documents the process is usually called bio-decontamination, because surfaces are treated to a validated log reduction rather than sterilized like a terminally sterilized product.<\/p>\n<\/details>\n<details>\n<summary>What hydrogen peroxide concentration do Fenggu VHP systems use?<\/summary>\n<p>Fenggu VHP generators use a 30\u201335% hydrogen peroxide solution, typically 35% food-grade. The aHP fogging machine uses a dedicated sporicidal solution.<\/p>\n<\/details>\n<details>\n<summary>Should I choose a mobile or an HVAC-integrated VHP system?<\/summary>\n<p>A mobile unit suits several separate rooms treated occasionally. An HVAC-integrated system suits a suite treated routinely, especially when the ductwork must be decontaminated too. Our guide to <a href=\"\/vhp-generator-portable-vs-integrated\/\">portable vs integrated VHP generators<\/a> goes through the trade-offs.<\/p>\n<\/details>\n<details>\n<summary>Is VHP the same as dry fog hydrogen peroxide?<\/summary>\n<p>No. VHP is hydrogen peroxide in the gas phase; dry fog (aHP) is a cloud of very fine liquid droplets, 1\u20135 \u03bcm in our fogging machine. They behave differently in distribution, condensation and cycle design. See <a href=\"\/vaporized-vs-aerosolized-hydrogen-peroxide\/\">vaporized vs aerosolized hydrogen peroxide<\/a>.<\/p>\n<\/details>\n<details>\n<summary>When is it safe to re-enter after a VHP cycle?<\/summary>\n<p>After aeration has brought the hydrogen peroxide concentration down to the release limit, specified at \u22641 ppm for our systems, confirmed by a calibrated low-level sensor.<\/p>\n<\/details>\n<details>\n<summary>Can Fenggu help with validation?<\/summary>\n<p>Yes. For the equipment we supply we provide on-site commissioning, support for biological indicator (BI) validation, maintenance and operator training. Fenggu is an equipment manufacturer and does not offer contract decontamination services.<\/p>\n<\/details><\/div>\n<\/div>\n<\/section>\n<p><!-- CTA --><\/p>\n<section class=\"fg-full fg-cta fg-sec\">\n<div class=\"fg-wrap\">\n<h2>Tell Us What You Need to Decontaminate<\/h2>\n<p>Send the room volumes, equipment list or transfer requirements. Our engineers will recommend a VHP configuration and prepare a datasheet and quotation.<\/p>\n<p>  <a class=\"fg-btn fg-btn-p\" href=\"\/contact\/\">Request a Quote<\/a><br \/>\n  <a class=\"fg-btn fg-btn-g\" href=\"\/products\/\">All Products<\/a>\n<\/div>\n<\/section>\n<\/div>\n<p><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[\n{\"@type\":\"Question\",\"name\":\"What is the difference between a VHP generator and a VHP sterilizer?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"In practice the terms are used for the same kind of equipment: a unit that vaporizes hydrogen peroxide and controls its concentration in an enclosed space. 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