https://www.selleckchem.com/pr....oducts/crenolanib-cp
These were assumed to have passed if tested at shift start, and were assigned as "passes" for continuous use. Forty-six N95s had an initial pass and were evaluated for continuous use, of which 6 subsequently failed later in the shift, giving a fail rate with continuous use of 9.5%. Continuous use of disposable N95s throughout an ED shift is reasonable during a PPE shortage if wearers are assured of fit at the start of their shift. Continuous use of disposable N95s throughout an ED shift is reasonable during a PPE shortage i