Ihe: aluminom
Atụmatụ: smoothsurface, ọ dịghị burrs, ezigbo elliptical nkuku, ọ dịghị ọkọ, ọ dịghị rebound sibending, ezi shaping mmetụta.
Akụkụ nke ntinye akwụkwọ: KN95, ihe nkpuchi N95, ihe nkpuchi na-enweghị isi, mpempe akwụkwọ
Atụmatụ:
Nchedo na nchedo gburugburu ebe obibi, na waya waya n'ime ụkpụrụ ụwa. Mmetụta mmetụta dị mma, ọ nwere ike ịkwado ha nke ọma na akpụkpọ ihu, ma nwee ike igbochi ájá, anwụrụ ọkụ, nje virus, wdg.