--- title: "Does a Passing Air-Particle Test Mean an Operating Theatre Is Sterile? — TXDY" description: "No. A passing air-particle test does not prove an operating theatre is sterile. Learn what particle counting measures and what the result actually means." lang: en json-ld: | [ { "@context": "https://schema.org", "@type": "Organization", "@id": "https://mytxdy.com/#organization", "name": "TXDY", "alternateName": [ "TXDY Hygiene", "TXDY Disinfection", "mytxdy" ], "url": "https://mytxdy.com", "logo": "https://mytxdy.com/favicon.ico", "description": "TXDY is a Malaysian hygiene and disinfection solutions company supplying pre-dosed NaDCC chlorine disinfectant tablets and supporting hygiene systems for healthcare, food and beverage, agriculture, industrial and commercial operations.", "email": "hello@onesupplies.com.my", "telephone": "+60 18-268 6875", "knowsAbout": [ "NaDCC disinfectant tablets", "Sodium dichloroisocyanurate", "Chlorine disinfection", "Infection prevention and control", "Surface disinfection", "Hygiene management", "Food safety and HACCP" ], "areaServed": { "@type": "Country", "name": "Malaysia" }, "address": { "@type": "PostalAddress", "addressLocality": "Kuala Lumpur", "addressCountry": "MY" }, "brand": { "@id": "https://mytxdy.com/#brand" } }, { "@context": "https://schema.org", "@type": "Brand", "@id": "https://mytxdy.com/#brand", "name": "TXDY", "alternateName": "TXDY Hygiene", "url": "https://mytxdy.com", "logo": "https://mytxdy.com/favicon.ico", "slogan": "Consistency you can count on", "description": "TXDY is a hygiene and disinfection brand known for PRO SolvTab CARE, a range of pre-measured NaDCC effervescent disinfectant tablets for controlled-dose disinfection." }, { "@context": "https://schema.org", "@type": "WebSite", "@id": "https://mytxdy.com/#website", "name": "TXDY", "alternateName": "TXDY Hygiene & Disinfection", "url": "https://mytxdy.com", "inLanguage": "en", "publisher": { "@id": "https://mytxdy.com/#organization" } }, { "@context": "https://schema.org", "@type": "Article", "@id": "https://mytxdy.com/knowledge-center/articles/air-particle-test-sterility#article", "headline": "Does a Passing Air-Particle Test Mean an Operating Theatre Is Sterile?", "description": "No. A passing air-particle test does not prove an operating theatre is sterile. Learn what particle counting measures and what the result actually means.", "image": [ "https://mytxdy.com/media/general/1786507178510-260812_Does_a_Passing_Air-Particle_Test_Mean_an_Operating_Theatre_Is_Sterile.png" ], "author": { "@type": "Organization", "name": "Team TXDY" }, "publisher": { "@id": "https://mytxdy.com/#organization" }, "mainEntityOfPage": { "@type": "WebPage", "@id": "https://mytxdy.com/knowledge-center/articles/air-particle-test-sterility" }, "isPartOf": { "@id": "https://mytxdy.com/#website" }, "inLanguage": "en", "datePublished": "2026-08-12T04:03:37.743+00:00", "dateModified": "2026-08-12T04:04:40.946427+00:00" }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://mytxdy.com/" }, { "@type": "ListItem", "position": 2, "name": "Articles", "item": "https://mytxdy.com/knowledge-center/articles" }, { "@type": "ListItem", "position": 3, "name": "Does a Passing Air-Particle Test Mean an Operating Theatre Is Sterile?", "item": "https://mytxdy.com/knowledge-center/articles/air-particle-test-sterility" } ] } ] --- [![TXDY](/__l5e/assets-v1/efff7eda-4c23-4f9f-acce-0df3ae238fa6/txdy-logo.png)](/) [Home](/)[PRO SolvTab™ CARE](/products/pro-solvtab-care)[About Us](/about) Knowledge Center Get in Touch 1. [Home](/) 2. Knowledge Center 3. [Articles](/knowledge-center/articles) 4. Does a Passing Air-Particle Test Mean an Operating Theatre Is Sterile? # Does a Passing Air-Particle Test Mean an Operating Theatre Is Sterile? No. A passing air-particle test does not prove an operating theatre is sterile. Learn what particle counting measures and what the result actually means. facility management By Team TXDY August 12, 2026 5 min read ![Does a Passing Air-Particle Test Mean an Operating Theatre Is Sterile? — TXDY Knowledge Center article cover image](/media/general/1786507178510-260812_Does_a_Passing_Air-Particle_Test_Mean_an_Operating_Theatre_Is_Sterile.png) No. A passing air-particle test does not mean that an operating theatre is sterile. Air-particle counting measures the number of physical airborne particles within specified size ranges and compares the results with the applicable criteria for the environment being assessed. It does not identify whether individual particles contain bacteria, fungi or other microorganisms, nor does it directly demonstrate the absence of viable microorganisms. A passing result therefore indicates that the **measured airborne particulate levels met the applicable particle-count criteria under the conditions of the test**. It should not be interpreted as proof of sterility. This distinction is particularly important in operating theatres because environmental control depends on multiple measures working together, which may include ventilation and filtration performance, environmental cleaning and disinfection, appropriate equipment and instrument reprocessing, infection-prevention procedures and required environmental verification. Particle counting should therefore be understood as **one component of controlled-environment verification, not a standalone test of sterility or overall infection safety**. For a more detailed explanation, see [**Air Particle Count**](https://mytxdy.com/knowledge-center/glossary/air-particle-count) and [**When Is an Operating Theatre Safe to Reopen? A Guide to Terminal Cleaning and Environmental Verification**](https://mytxdy.com/knowledge-center/articles/guide-to-terminal-cleaning) in the TXDY Knowledge Center. ## Ready to standardise your disinfection protocol? Talk to our team about implementing PRO SolvTab™ CARE across your operation. [View product](/products/pro-solvtab-care) Get in touch ![TXDY](/__l5e/assets-v1/efff7eda-4c23-4f9f-acce-0df3ae238fa6/txdy-logo.png) Simplified Supply. Unified as One. ## Contact Us - +60 18-268 6875 - hello@onesupplies.com.my - Kuala Lumpur, Malaysia © 2025 TXDY. All rights reserved. [Privacy Policy](#)[Terms of Use](#)