Alliance Laundry Develops Decontamination System

(September, 2020) Alliance Laundry Systems of Ripon, WI has helped to develop a protocol for the viral decontamination of certain models of N95 masks utilizing UniMac 75-pound tumble dryers. The protocol will potentially quadruple the useful life of personal protective equipment (PPE). Research suggests masks could be decontaminated up to three times, while preserving fit and filtration.

This method of decontamination builds off evidence provided by the National Institutes of Health (NIH), which showed that submitting N95 masks to dry heating cycles, similar to those demonstrated by Alliance’s dryer, reduces the SARS-COV-2 viral load by three orders of magnitude.

Alliance Laundry Systems leveraged its state-of-the-art research and development lab to perform hundreds of hours of tests utilizing UniMac tumble dryers. The overarching goal was to develop a repeatable decontamination process that would help safely reuse certain models of N95 masks. Testing suggests that specific masks can be decontaminated up to three times without excessive damage to their fit and filtration. The CDC/NPPTL (NIOSH) labs provided filtration and fit data on new masks which underwent the decontamination treatment. Lab results and test data have now been submitted to the FDA for emergency use authorization.

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