Always a perfect fit! - with the 3M 501 filter cover

With this filter cover from 3M you can optimize all 3M 6000 gas filter series & 3M 5000 fine dust insert filter series. The perfect fit of the filters is guaranteed with these protective covers. In addition, this product helps to increase the service life of your 3M respirator mask. The plastic cover is particularly lightweight and guarantees the optimum safety of 3M respiratory protection products. One pack always contains two filter covers.