Cleaning and disinfection are the load-bearing wall of studio infection control. This is the Spaulding classification, the three disinfectant levels, the five efficacy factors, and the unreliable methods inspectors reject.
What the full article covers
Cleaning is not disinfection: removing organic and inorganic debris is the prerequisite that lets any disinfectant or sterilant work.
The Spaulding classification decides everything: critical items that pierce skin must be sterile or single-use, semi-critical items need high-level disinfection, and non-critical surfaces only need low-level disinfection.
Disinfectant efficacy is governed by five factors: bioburden, microbial type, surface texture, concentration, and contact time; the last two are the ones studios get wrong.
Chlorine-based disinfectants must never be mixed with ammonia, acids, or peroxides: each combination generates a toxic gas or oxygen that turns a cleaning cart into a hazard.
UV lamps, glass bead sterilizers, pressure cookers, microwave ovens, and ultrasonic tanks are not sterilization methods, and inspectors know it.
Documentation is the deliverable: a written schedule, product labels with DIN or EPA registration, and spore-test records are what a regulator looks at first.
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First published on poliinternational.com. This is a summary of the original engineering article.
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