3M™ Full Facepiece Reusable Respirator 6700, 6800, 6900 Series Size:Medium 1 PPM phosphine calibration gas

1 PPM phosphine calibration gas with nitrogen balance

Special Spring Top

and reliability together with an extended service life

Carbon Monoxide - 60 ppm

3M™ Full Facepiece Reusable Respirator 6700, 6800, 6900 Series Size:Medium 1 PPM phosphine calibration gasSelect Size The 3M Full Facepiece Reusable Respirator 6000 Series helps provide protection against certain airborne contaminants. Versatileuse with 3M particulate filters, gas vapor cartridges and supplied air respirator systems. The 3M Cool Flow Valve helps make breathing easier. These features combine to make a comfortable, practical and economical solution. Recommended applications include assembly , chemical clean up, chemical handling, chemical