Description This pre-filter is for use with selected Sundström respirators and can reduce clogging by removing large particles, thereby helping to extend the service life of the filter. Pre-filter for use with the Sundström SR 500 powered respirator, SR 200 full-face respirator mask, and SR 100 and SR 90-3 half-face respirator masks Can extend the service life and reduce operating costs of the main filter by capturing large particles Frequently changing the pre-filter may help optimise mask performance Can be used with particulate and combination filters (available separately) For use with a pre-filter holder (available separately) Parts should be checked regularly for signs of wear and damage, and replaced when necessary
