[Wonder Warthog]

"You truly don't know what you're talking about. I've been an environmental health and safety professional in heavy industry and agriculture for 53 years and still going, and I know more about personal protection equipment than you could ever hope to know."

I posted the science. You've posted nothing.

Nobody is talking about absolute protection, which doesn't exist for ANY PPE.

I've worked with many an "environmental health and safety professional" during my stint as a scientist in the chemical industry, in fact developing instrumentation they would later use for personnel and area monitoring.

ALL of them were very knowledgeable about the regulations they oversaw. Few of them understood the science behind those regulation.

I know EXACTLY what I'm talking about.

[glennaro]

Understood. Many thanks for responding.