Imveliso isetyenziswa kumgangatho wovavanyo we-EN149: isixhobo sokukhusela ukuphefumla-sihluze i-anti-particle semi-mask; Imigangatho ehambelanayo: BS EN149: 2001 + A1: 2009 isixhobo sokuphefumula esihluza iimfuno ze-anti-particle semi-mask iimfuno zovavanyo lwe-8.10 uvavanyo lokuvala, EN143 7.13 kunye neminye imigangatho yovavanyo.
Umgaqo wovavanyo lokuthintela: isihluzo kunye nesithinteli sokuvavanya imaski sisetyenziselwa ukuvavanya ubungakanani bothuli oluqokelelwe kwisihluzi, ukuxhathisa kokuphefumla kwesampulu yovavanyo kunye nokungena kwesihluzi (ukungena) xa ukuhamba komoya kudlula kwisihluzi ngokufunxa kwindawo ethile. indawo yothuli kwaye ifikelela ukuxhathisa okuthile kokuphefumla.