In case someone's planning on hitting the home store for something like a P100 you might find there, here's a little decoder. > Modern filter media uses a buil

In case someone's planning on hitting the home store for something like a P100 you might find there, here's a little decoder. > Modern filter media uses a built-in static charge to attract and retain particles as they are pulled through. Some grades of filter can have this static charge ruined when in contact with oil mist. The letter in a mask’s name tells you whether or not the mask can resist oil: N masks are not oil resistant, P masks are oil proof, and R masks are oil resistant. > The number in a rating tells you the minimum amount of airborne challenge particles the mask protects against: an N95 mask keeps out at least 95% of particles but isn’t oil resistant, and a P100 mask is oil proof while protecting the wearer from at least 99.8% of particles. https://pksafety.com/blog/respiratory-basics-n95-vs-p100/ https://pksafety.com/blog/respiratory-basics-n95-vs-p100/