{"id":29,"date":"2026-10-13T01:29:26","date_gmt":"2026-10-13T01:29:26","guid":{"rendered":"https:\/\/fgvhp.com\/tools\/"},"modified":"2026-10-16T10:24:32","modified_gmt":"2026-10-16T10:24:32","slug":"tools","status":"publish","type":"page","link":"https:\/\/fgvhp.com\/pt\/tools\/","title":{"rendered":"Ferramentas"},"content":{"rendered":"\n\n<section class=\"phero\"><div class=\"wrap\">\n  <div class=\"crumb\"><a href=\"\/\">Home<\/a> \/ <span>Tools<\/span><\/div>\n  <span class=\"mono eyebrow\">Engineering tools<\/span>\n  <h1>VHP, isolator and cleanroom engineering calculators<\/h1>\n  <p class=\"lead\">Free calculators for the numbers that come up when planning and testing VHP bio-decontamination, isolators and cleanrooms. Each tool shows its method and limits, and you can send any result to a Fenggu engineer for review.<\/p>\n<\/div><\/section>\n<section class=\"fgv-sec\" style=\"padding-top:40px\"><div class=\"wrap\">\n  <div class=\"tcards\"><a class=\"tcard\" href=\"\/tools\/isolator-leak-rate-calculator\/\"><span class=\"mono\">ISOLATORS \u00b7 CALCULATOR<\/span><h3>Isolator leak rate calculator<\/h3><p>Pressure decay reading \u2192 hourly leak rate and ISO 10648-2 class, with temperature correction.<\/p><span class=\"go\">Open the tool \u2192<\/span><\/a><a class=\"tcard\" href=\"\/tools\/vhp-aeration-time-calculator\/\"><span class=\"mono\">SAFETY \u00b7 CALCULATOR<\/span><h3>VHP aeration time calculator<\/h3><p>Volume, starting ppm and airflow \u2192 ideal time to reach 1 ppm (or your own target), with a log-scale curve.<\/p><span class=\"go\">Open the tool \u2192<\/span><\/a><a class=\"tcard\" href=\"\/tools\/vhp-equipment-selector\/\"><span class=\"mono\">EQUIPMENT \u00b7 CALCULATOR<\/span><h3>VHP equipment selector<\/h3><p>What you need to treat and how big it is \u2192 the type of VHP equipment that fits, and what to confirm.<\/p><span class=\"go\">Open the tool \u2192<\/span><\/a><a class=\"tcard\" href=\"\/tools\/iso-14644-1-calculator\/\"><span class=\"mono\">CLEANROOM \u00b7 CALCULATOR<\/span><h3>ISO 14644-1 cleanroom classification calculator<\/h3><p>Room area and ISO class \u2192 minimum sampling locations, class limits and sample volume per location.<\/p><span class=\"go\">Open the tool \u2192<\/span><\/a><a class=\"tcard\" href=\"\/tools\/air-change-rate-recovery-time-calculator\/\"><span class=\"mono\">CLEANROOM \u00b7 CALCULATOR<\/span><h3>Air change rate and recovery time calculator<\/h3><p>Room size and airflow \u2192 air changes per hour, HEPA terminals and estimated 100:1 recovery time.<\/p><span class=\"go\">Open the tool \u2192<\/span><\/a><\/div>\n  <p class=\"note\" style=\"margin-top:24px\">All results are engineering estimates. Cycle times, leak-tightness and efficacy are confirmed by testing and validation for your equipment and load.<\/p>\n<\/div><\/section>\n\n<section class=\"fgv-sec\" style=\"padding-top:0\"><div class=\"wrap\"><div class=\"cta\">\n  <div><span class=\"mono eyebrow\">Free application review<\/span><h2>Need a number these tools do not give?<\/h2><p>Describe the space or equipment and what you need to prove. An engineer will reply.<\/p><p class=\"cta-direct\">Prefer to talk directly?<br><a href=\"https:\/\/wa.me\/8618321459135\" target=\"_blank\" rel=\"noopener nofollow\"><svg width=\"16\" height=\"16\" viewBox=\"0 0 24 24\" aria-hidden=\"true\"><path fill=\"currentColor\" d=\"M17.47 14.38c-.3-.15-1.76-.87-2.03-.97-.27-.1-.47-.15-.67.15-.2.3-.77.97-.94 1.16-.17.2-.35.22-.64.08-.3-.15-1.26-.46-2.39-1.48-.88-.79-1.48-1.76-1.65-2.06-.17-.3-.02-.46.13-.6.13-.14.3-.35.45-.52.15-.18.2-.3.3-.5.1-.2.05-.37-.03-.52-.07-.15-.67-1.61-.92-2.2-.24-.58-.49-.5-.67-.51h-.57c-.2 0-.52.07-.79.37-.27.3-1.04 1.02-1.04 2.48s1.07 2.88 1.21 3.07c.15.2 2.1 3.2 5.08 4.49.71.31 1.26.49 1.7.63.71.23 1.36.19 1.87.12.57-.09 1.76-.72 2-1.41.25-.7.25-1.29.18-1.41-.08-.13-.27-.2-.57-.35M12.05 21.78a9.87 9.87 0 0 1-5.03-1.38l-.36-.21-3.74.98 1-3.65-.24-.37a9.86 9.86 0 0 1-1.51-5.26c0-5.45 4.44-9.88 9.89-9.88a9.88 9.88 0 0 1 9.88 9.89c0 5.45-4.44 9.88-9.89 9.88M20.52 3.45A11.82 11.82 0 0 0 12.05 0C5.46 0 .1 5.36.1 11.89c0 2.1.55 4.14 1.6 5.95L0 24l6.34-1.65a11.94 11.94 0 0 0 5.71 1.45h.01c6.58 0 11.94-5.36 11.94-11.89 0-3.18-1.24-6.17-3.48-8.42\"\/><\/svg>WhatsApp +86 183 2145 9135<\/a><a href=\"mailto:info@fenggu-bio.com\"><svg width=\"16\" height=\"16\" viewBox=\"0 0 24 24\" aria-hidden=\"true\"><path d=\"M3 5h18v14H3z\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\/><path d=\"m3 6 9 7 9-7\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\/><\/svg>info@fenggu-bio.com<\/a><\/p><\/div>\n  <div><div class='fluentform ff-default fluentform_wrapper_1 ffs_default_wrap'><form data-form_id=\"1\" id=\"fluentform_1\" class=\"frm-fluent-form fluent_form_1 ff-el-form-top ff_form_instance_1_1 ff-form-loading ffs_default\" data-form_instance=\"ff_form_instance_1_1\" method=\"POST\" data-turnstile_key=\"0x4AAAAAAFR_A6IRFH-zWvr4\" ><fieldset  style=\"border: none!important;margin: 0!important;padding: 0!important;background-color: transparent!important;box-shadow: none!important;outline: 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