Filterka hawadu waa albaabka dhululubada si uu u nuugo hawo nadiif ah.Shaqadeedu waa inay ka saarto boodhka iyo wasakhda kale ee hawada gelaysa dhululubada si loo yareeyo xidhashada qaybaha kala duwan ee dhululubada.Tani waa inay kicisaa dareenka shaqaalaha markabka.

Sababtoo ah xaddi badan oo boodh ah ayaa ka kooban qaybo quartz ah oo leh engegnaan sare, haddii ay galaan dhululubada, waxay keeni doontaa daal halis ah qaybaha sida abrasives lagu daro dusha sare ee dhululubada.Tijaabooyin la sameeyay ayaa muujiyay in haddii qalabka dhaliyaha naaftada aanu ku xidhnayn shaandhada hawada, khataraha ay keeni karaan waxa ka mid ah: xidhashada dhululubada oo la kordhiyey 8 jeer, xidhashada biistanku waxa la kordhiyey 3 jeer, iyo xidhashada giraanta piston waxaa lagu kordhiyey 9 jeer.

Waxaa la arki karaa in shaandhada hawadu ay saameyn aad u muhiim ah ku leedahay nolosha adeegga matooriyaha naaftada, iyo shaandhada hawada looma oggola in la saaro marka la doono marka la isticmaalayo.Isla mar ahaantaana, shaandhada hawada waa in la nadiifiyaa oo la ilaaliyaa wakhtiga iyadoo loo eegayo qadarka boodhka hawada ku jira aagga isticmaalka si loo hubiyo socodka siman ee albaabka, buuxi shuruudaha matooriyaha naaftada hawada qaadashada, kana hortagto fashilaad badan oo ay keento (Sida cadaadis daciif ah, awood aan ku filnayn, qiiqa madow ee qiiqa, iwm.).