Habka buufinta budada, oo sidoo kale loo yaqaano daahan budada ah, waa hab cusub oo daahan ah oo si degdeg ah loo sameeyay tobannaankii sano ee la soo dhaafay.Waxyaabaha ceeriin ee la isticmaalo waa budo caag ah.Dahaarka heli kartaa daahan dhumuc weyn, sida daahan 100 ~ 300μm daahan, la daahan dareere guud guud, oo ku saabsan 4 ~ 6 jeer, iyo daahan budo waa mar gaari karaa dhumucda.Dahaarka wuxuu leeyahay iska caabin daxalka wanaagsan.Dahaarka budada ah kuma jiraan wax dareere ah, mana laha wax wasakh ah oo saddex qashin ah.Isticmaalka buufinta electrostatic budada ah iyo hababka kale ee cusub, waxtarka sare leh, oo ku habboon daahan khadka tooska ah;Heerka isticmaalka budada sare, dib loo warshadayn karo.