There is significant clinical evidence to show that using face masks, in either the hospital or the community environment, does help reduce viral infections.
Surgical masks are medical devices that are designed to protect the area where a surgeon is working from contamination originating from the wearer. These masks are designed to protect the environment and not the wearer. Respirators are personal protective equipment. They are designed to protect the wearer from the surrounding environment in which they find themselves. Respirators have much higher filtration performance than surgical masks. They must pass a face fit test to be approved and sold on the market.
Yes, face masks should not only be changed between patients but they should also be changed anytime they become wet.
Limitations of PPE face masks include:
Disposable face masks must be used where there is a possible risk of contamination. These masks must be disposed once used. If in case it needs to be stored seal the mask in a plastic bag before storing. It is strictly prohibited to share masks with anyone else other than you.
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