Author: Amy DPhil Price; Yi Cui; Lei Liao; Wang Xiao; Xuanze Yu; Haotian Wang; Mervin Zhao; Qiqi Wang; Steven Chu; Larry F Chu
Title: Is the fit of N95 facial masks effected by disinfection? A study of heat and UV disinfection methods using the OSHA protocol fit test. Document date: 2020_4_17
ID: b7n2og71_63
Snippet: Our research is concordant with previous research in our observation that we observed mask models that failed after UVGI treatment using various fit testing methods. These data suggest that UVGI methods of FFR decontamination cause fit failure in more than 40% of the models tested to date. FFR fit testing may be needed after each decontamination cycle for each user to confirm proper fit in order to ensure that decontaminated masks perform accordi.....
Document: Our research is concordant with previous research in our observation that we observed mask models that failed after UVGI treatment using various fit testing methods. These data suggest that UVGI methods of FFR decontamination cause fit failure in more than 40% of the models tested to date. FFR fit testing may be needed after each decontamination cycle for each user to confirm proper fit in order to ensure that decontaminated masks perform according to CDC guidance that "[a] key consideration for safe extended use is that the respirator must maintain its fit and function."
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