3M™ Versaflo™ BT-63 Length Adjusting Tight Fitting Breathing Tube (BT-60 Series) 3M First Responder Cartridges provide respiratory and limited head

provide respiratory and limited head and eye protection

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

This mask is NIOSH approved for respiratory protection against certain organic vapors and particulates

helping to keep the wearer safe

4-Point Ratchet - Case of 20

3M™ Versaflo™ BT-63 Length Adjusting Tight Fitting Breathing Tube (BT-60 Series) 3M First Responder Cartridges provide respiratory and limited head3M 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.