Hiki i nā maka lapaʻau lapaʻau ke ālai i nā ʻāpana ʻoi aku ka nui ma mua o 4 microns ke anawaena.Hōʻike nā hopena hōʻike ma ka Mask Closure Laboratory ma kahi hoʻonohonoho haukapila e hōʻike ana ka nui o ka transmittance o kahi mask surgical he 18.3% no nā ʻāpana liʻiliʻi ma mua o 0.3 microns e like me nā kūlana olakino maʻamau.
ʻO nā hiʻohiʻona o nā masks surgical:
pale 3ply
ʻO ka papa lole hoʻoheheʻe microfiltration: pale aku i ka lepo bacteria pollen i ka uahi kemika a me ka noe.
ʻO ka ʻili i ulana ʻole ʻia: ka hoʻomoʻa ʻana o ka wai
Papa lole ʻaʻole i ulana ʻia: kūʻokoʻa kūʻokoʻa wai