Quote Originally Posted by JaneV2.0 View Post
Medical personnel have to fit their masks to their face in some kind of chamber, and then a sugar substitute is piped in. If they can taste it, the mask isn't fitted properly. At least that's what I've read.
You are correct. An N95 mask is ONLY effective if it the proper size. We actually go through an annual process called "fit testing". If a SEAL cannot be obtained, it is not an effective mask. Someone with a beard will never have a seal. Some very lean faces may not get a seal.

The public buying and using them is a ridiculous waste of resources-both a wasted mask and the $. Patients who really need them are fit-tested for proper protection.

Facts matter!