3M 501 Pre-Filter Retainers

The 3M 501 Pre-Filter Retainer for 3M 6000, 6500 & 7000 Series respirators.

Designed to be used where both gas/vapour & particulate protection are required, the 501 retainers clip onto 3M 6XXX gas / vapour filters & retain 3M 5925 particulate filter in place.

Used in conjunction with the 3M 603 Pre-Filter Platforms, the 3M 501's allow the 3M 5925 Particulate Pre-Filters to be fitted directly to the 6000/7000 series masks without gas/vapour filters to offer particulate only protection.

* Supplied in pack of 2 Retainers, for 1 mask