If you're into the game of breath control you most likely already play with gas masks. This little bastard is a mind blowing extra hefty option, if reduces the inflow of air of every gas mask that has a 40 mm threading for the filter to 6 mm only. Use this piece of CNC machined hard plastic with caution, as you should with all breath control games.
Made of plastic.
Similar Collections: Gas Masks & Breath Play, Men's Clothing, Mister B