Umkhiqizo usebenza kuzinga lokuhlola le-EN149: idivayisi evikela ukuphefumula ehlungelwe i-anti-particle semi-mask; Izindinganiso ezivumelanayo: BS EN149:2001+A1:2009 Izidingo ze-anti-particle semi-mask ezihlungiwe zedivayisi yokuphefumula ehlungiwe umaki wokuhlola 8.10 wokuhlola ukuvimba, EN143 7.13 namanye amazinga okuhlola.
Umgomo wokuhlola wokuvimba: isihlungi nesihloli sokuvimbela imaski sisetshenziselwa ukuhlola inani lothuli oluqoqwe kusihlungi, ukumelana nokuphefumula kwesampula yokuhlola kanye nokungena kwesihlungi (ukungena) lapho ukugeleza komoya kudlula kusihlungi ngokumunca endaweni ethile. imvelo yothuli futhi ifinyelela ukumelana nokuphefumula okuthile.