3M Collar is ideal for checking face-to-respirator seal on any particulate respirator or gas/vapor respirator with a particulate prefilter. Collar offers guaranteed performance with the 3M qualitative fit test apparatus FT-10 and FT-30 to provide a secure hood environment. It finds wide range of application in automotive, construction, manufacturing, metal production, fabrication, military maintenance, mining, oil, gas, pharmaceutical, transportation, food and beverage manufacturing.