Facemask Alternatives in Veterinary Medicine in the Context of COVID-19 Shortages

- densely woven cotton fabric (≥270 thread count), medical textile, or other impermeable, breathable material that can be laundered and resterilized; - make pleated or fitted pocket style facemasks to maximize fit; - make masks with two sets of ties, not elastics, to endure laundering and autoclaving; - internal wire or fabric tape may be used to mold masks over the nose; - filter material should be designed for use near mucus membranes, such as facial tissue or paper towel; - if possible, fit test homemade masks against an FDA-certified surgical mask as a control; - if higher filtration efficiency is required, test according to the FDA Enforcement Policy for Face Masks and Respirators During the Coronavirus Disease (COVID-19) Public Health Emergency; - Maintain enough masks to change as frequently as one would change disposable surgical masks to maintain appropriate hygiene.