A few months ago, most of us had never heard of an N95 respirator or mask. I had never heard of it. It is an essential element of Personal Protective Equipment, or PPE, which we have all heard so much about. The N refers to ‘non-oil’, meaning that the mask should not be used in the presence of oil-based substances. The 95 means that 95% of airborne particles are screened out if the mask is worn properly. Keep in mind that 95% is less than perfect. It means that the mask will fail 5% of the time. And, if the mask is not worn with a tight seal, the efficiency percentage will drop further. And, the mask wearer is instructed not to adjust the mask during use which will break the seal. So, the 95% standard is likely under idealized circumstances. As of this writing, I have only worn the N95 mask on two occasions. My initial experience donning the mask was for a fit testing by an occupational health specialist to ve...
MD Whistleblower presents vignettes and commentaries on the medical profession. We peek 'behind the medical curtain' and deliver candor and controversy in every post.