Our surgical masks are loose-fitting, disposable devices that create a physical barrier between the mouth and nose of the wearer and potential contaminants in the immediate environment. Surgical masks are regulated under 21 CFR 878.4040.
They are not meant to be worn more than once.
Our KN95 masks are thicker than a normal surgical mask. However, they need to be fitted properly, and they are not designed to be used for a long period. 30 minutes is an average time to wear. Dispose of the face when it gets wet or dirty. A typical respiratory face mask will last over 1 week. Wear when you are near to other people, for example, in an office or when travelling on public transport.
Please note: KN95 masks are NOT Niosh approved N95 masks. The CDC has recently stated that KN95 masks may be suitable alternative when Niosh N95 masks are not available.