Decontamination of disposable respirators for reuse in a pandemic employing in-situ-generated peracetic acid.

Background: During shortages of filtering face pieces (FFP) in a pandemic, it is necessary to implement a method for safe reuse or extended use. Our aim was to develop a simple, inexpensive and ecological method for decontamination of disposable FFPs that preserves filtration efficiency and material integrity.

Material And Methods: Contamination of FFPs (3M Aura 9320+) with SARS-CoV-2 (1.