The SR 510, P100/HE particulate filter is of the mechanical type and designed for use in Sundström half masks,full face masks Air Purifying Respirators (APR) and SR 500 Powered Air-Purifying Respirator (PAPR). The filterprovides protection against all types of particulate pollutants. The particulate filter can easily be combinedwith chemical cartridges from the Sundström filter range in order to provide protection also against gases andvapours, e.g. during spray painting. The particulate filter should be combined with pre-filter SR 221, which willthereby extend the life of the particulate filter. The SR 500 PAPR should always be used with two particulatefilters or two combined filters consisting of chemical cartridge and particulate filters.