Sterilized reused respirators not effective enough against aerosolized particles--lab study

Lab study: Sterilized reused respirators not effective enough against aerosolized particles Over 78% were dirty, rendering them unsuitable for sterilization, the authors say. CIDRAP

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Less than 20% of reused filtering facepiece respirators (FFRs) collected from nurses amid the COVID-19 pandemic were in good enough condition to undergo sterilization, after which none retained at least 94% filtration of aerosol particles, finds a laboratory study comparing two sterilization methods after up to 15 to 30 days of use.

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