Kani waa mashiin weji-gashi oo toos ah oo inta badan loo isticmaalo samaynta waji-xidhka laalaabayo. Waxay isticmaashaa tignoolajiyada ultrasonic si ay u alxanto 3 ilaa 6 lakab oo ah dhar-dhoobo ah, dhar dhalaalaysa, kaarboon firfircoon iyo walxaha shaandhada, maro-dhoobo ah, waxayna soo saari kartaa n95, kn95, n90 maaskaro.