Thedakin tsaftaya bambanta da ƙirar iska bisa ga maki daban-daban.Gabaɗaya, ana iya raba shi zuwa kwararar laminar tsaye (Class1-100), kwararar laminar a kwance (Class1-1,000), da kwararar ruwa (Class1,000-100,000).Cikakken bayanin shine kamar haka:
| Hanyar hawan iska | Tsafta | Gudun iska (/s) | Yawan canjin iska (/h) | Shigar da iska | Amfani | Hasara |
| Gudun laminar tsaye | Darasi na 1- Darasi na 100 | 0.25-0.40 | 200-60 | Busa: fiye da 80% na rufin.Inhalation: fiye da 40% na bangon bango, kuma daga gefen gefen. | Tasirin ya cika, Ba a sauƙaƙe ta hanyar masu aiki da matsayin aiki ba,Yana zama karko nan da nan bayan fara aiki.Akwai ƙanƙara tarawar ƙura da sake iyo.Sauƙi don sarrafawa. | Kula da sararin sarari a cikin rufi (haske, da dai sauransu) Yana da matsala don canzatace,Farashin kayan aiki yayi tsada sosai,Fadada gidan ya fi wahala. |
| A kwance kwararar laminar | Darasi na 1- Darasi 1,000 | 0.45-0.50 | 200-600 100-200 | Busa: fiye da 80% na siding.Inhalation: fiye da 40% na siding, kuma daga rufi. | Ya zama barga nan da nan bayan an fara aiki, kuma tsarin yana da sauƙi. | Tasiri na sama zai bayyana a ƙasa, dole ne a biya hankali ga tsari da sarrafa ma'aikata da injuna,Farashin kayan aiki yayi tsada sosai,Fadada gidan ya fi wahala. |
| Ruwan turbulent (na al'ada) | Darasi 1,000- Darasi 100,000 | 30-60 | Busa: tace yana da mafi kyawun fitarwa.Inhalation: daga kusa da bene. | Simple tsarin, Low kayan aiki kudin,Fadada gidan yayi sauki,Idan kun ƙara tebur mara ƙura, za ku iya tabbatar da tsafta mai girma. | Gurɓataccen gurɓataccen abu na iya yawo a cikin gida saboda tashin hankalin iskar yana ɗaukar ɗan lokaci kafin a kai ga kwanciyar hankali,Dole ne a biya hankali ga tsari da sarrafa ma'aikata da injuna. |
Lokacin aikawa: Nuwamba-05-2021