3M 501 Filter Retainer For Respiratory Mask (10 x Pair) Size:One Size for superior comfort throughout the

for superior comfort throughout the day

Fluorescent cloth that is both pliable and robust

Waterproof: Made of stretchy PU-coated fabric with welded seams for complete protection

Curved hem

Includes chest pockets with flap and button closures

3M 501 Filter Retainer For Respiratory Mask (10 x Pair) Size:One Size for superior comfort throughout the3M 501 Filter Retainer For Respiratory Mask (10 x Pair) 3M 5000 Series Filter Retainer (501) The 3M 501 Filter retainer is used to keep the 5911, 5925 and 5935 filters in place at the front of the respirator. Can be used with 3M 5000 Series filters to add particulate protection to the gas and vapour filters.