3M™ Versaflo™ BT-63 Length Adjusting Tight Fitting Breathing Tube (BT-60 Series) 3M First Responder Cartridges The 3M FT-12 Fit Test

The 3M FT-12 Fit Test Solution

4-Point Ratchet - Case of 20

Lithium ion battery is approx

The cartridges are dual-flow to allow easier breathing and greater comfort

3M™ Versaflo™ BT-63 Length Adjusting Tight Fitting Breathing Tube (BT-60 Series) 3M First Responder Cartridges The 3M FT-12 Fit Test3M Versaflo BT 63 Length Adjusting Breathing Tube is designed to be used with 3M Full Facepiece Respirators FF 400 Series, 6000 Series, and 7800S Series and the 3M Versaflo Powered Air Purifying Respirator TR 600. When used in an approved configuration, the tight fitting PAPR assembly can provide an assigned protection factor (APF) of 1000 against certain gases, vapors, and particulates.