Protective Full Face Respirator - Heavy-Duty Anti-Fog Air Filtration Mask with 40mm Activated Charcoal Filter for Vapor, Smoke & Particulates - Survival & Tactical Full Face Gas Mask

Fully adjustable ,super easy to use ,Pretty comfortable filter works like a charm! Plug and play easy on easy off! As I am a multi Tasker I will use this for painting and drywall dust! The real reason i bought this is if shtf I have it if that day comes! It's good quality for the price and will buy again !!

These fit well and no these are not filters you want for nuclear but these masks have good seal and will fit your 40mm Mira 20 year filters if needed DONT pay for all that buy this and swap filters