PK Safety

Works great as replacement filters for 3M Organic Vapor Cartridge.

Great price and fast shipping. Excellent company to deal with!

This thing is sturdy and collapses down flat. I am totally happy with it.

all the items worked just as advertised was able to complete my project with no worries

Because I didn't know which would be better, I bought this and the Howard Leight Ultra-Lightweight muff together. I found a major difference, and the Pyramex muff is definitely better. It blocks out more noise and is more comfortable.