@MagisterBracey @LazarusLong13 @TheSkylineTrail @San23Nia @Project95 @CleanAirCrewOrg This one is reasonably popular. In addition to no valve, it doesn't look too much like 'scary' hazmat gear (subjective of course).
https://www.gvs.com/en/catalog...
@MagisterBrasy@LazarusLong13@TheSkylineTrail@San23Nia@Project95@cleanarreeworg这一款相当受欢迎。除了没有阀门外，它看起来也不太像“可怕”的危险品装置（当然是主观的）。
https://www.gvs.com/en/catalog...