My January 30 post “A Filter By Any Other Name” was a popular one. Shortly after posting it, Dr. Fauci floated a now popular sentiment that if one mask is good, two must be better. Soon the CDC released unspecified testing that two masks are indeed better than one.
Here’s a quick video showing the masks available and what they are are good for. My expertise? 30 years in the Personal Protection Equipment business, specifically respiratory protection at 3M and Honeywell.
Ron's Ramblings 