Everyone is going crazy for the N95 mask but there are some serious problems with these types of masks.
These are medical grade masks and they must have proper fitting for them to be effective . Now everyone wants one and wear one but unless you are fit tested you will not have much protection .
worse there are so much fake out there that it is hard to tell the difference .
the worse is if you wear it improperly with support elastics misplaced and then you will be breathing your own carbon di oxide .
“One driver who crashed his SUV into a pole in Lincoln Park, New Jersey, on April 23 actually blamed his collision on his mask. He told police he passed out because he’d been wearing an
N95 mask for too long. Initially, the investigating officers believed him, writing in a
Facebook post that he was the only person in the car and passed out due to “insufficient oxygen intake/excessive carbon dioxide intake.”
“In rare cases, it can actually be pretty dangerous, according to the
National Institutes of Health (NIH). They say that inhaling high levels of carbon dioxide (CO2) may be life-threatening. Hypercapnia (carbon dioxide toxicity) can also cause headache, vertigo, double vision, inability to concentrate, tinnitus (hearing a noise, like a ringing or buzzing, that’s not caused by an outside source), seizures, or suffocation due to displacement of air. “
One of the main benefits of wearing a mask is that it protects you and others from illness. Masks also reduce exposure to allergens, germs, and poor air quality.
www.google.ca
I am not even sure what the pilots were wearing but if they had something like this on and placed improperly then there is a true risk of hypoxia.
Collection of exhaled has under the mask can work to displace oxygen. Confusion , emotional upsets and fatigue can result.
although for the different reason but I remember this plane crash blamed on hypoxia