Tsaftace adadin isar da iska

Matsakaicin isar da iska mai tsafta (CADR) siffa ce ta cancanta wanda shine ƙafar cubic ƙafa a cikin minti daya (CFM) na iska wanda aka cire duk barbashi na girman girman da aka bayar. Don masu tace iska waɗanda ke da iska da ke gudana ta cikin su, ƙananan ɓangarorin (na wani nau'i mai girma) waɗanda aka cire daga iska, wanda aka ninka ta hanyar iska (a cikin CFM) ta na'urar. Mafi daidai, shi ne CFM na iska a cikin ɗakin 1,008-cubic-foot (28.5 m3) wanda aka cire dukkan barbashi na girman girman da aka ba da shi daga iska, sama da yawan adadin da barbashi ke fadowa daga cikin iska. Masu tacewa daban-daban suna da mabambantan iyawa don cire rarrabuwar barbashi daban-daban, don haka CADR guda uku don na'urar da aka bayar galibi ana auna su: hayaki, pollen, da ƙura. Ta hanyar hada yawan iskar iska da ingancin kawar da barbashi, masu amfani ba su da yuwuwar a yaudare su ta hanyar ingantaccen tacewa wanda ke tace iskar kadan, ko kuma yawan iskar da ba a tacewa sosai.Residential Air Cleaners (PDF) (2 ed.). United States Environmental Protection Agency. 2009. Archived from the original (PDF) on April 1, 2010.

 Aiwatar da aiki 
Ƙungiyoyin Masu Kayayyakin Kayan Gida (AHAM) ne suka haɓaka ƙimar CADR kuma an auna su bisa ga tsarin da ANSI/AHAM AC-1 ya kayyade. Dillalai, masana'antun, ƙungiyoyi masu ƙima, da hukumomin gwamnati kamar EPA[1] da Hukumar Ciniki ta Tarayya. Dukan tsabtace iska na gida ba a rufe shi da ƙayyadaddun CADR saboda ana yin ma'aunin a cikin daidaitaccen ɗaki na 1,008-cubic-foot (28.5 m3), girman ɗakin ɗakin gida na yau da kullun, wanda ke da nau'ikan kwararar iska daban-daban fiye da matatun gida duka. Ana yin ma'auni tare da tace yana gudana ba gudu ba, don haka barbashi da ke faɗowa daga iska ba a ƙidaya su a matsayin wani ɓangare na aikin tacewa. Ma'aunin yana aiki ne kawai ga ɓangarorin kwayoyin halitta, ba ga gas ba.

Ana iya gwada kowace na'ura ko fasaha da ke kawar da barbashi daga iska don lambobin CADR. Duk wanda ke da kayan aikin da ake buƙata zai iya yin ma'aunin ANSI/AHAM AC-1. AHAM na gudanar da gwaje-gwajen ga masana'antun da ake biyan membobin AHAM waɗanda suka zaɓi yin amfani da sabis ɗin su, yana bawa masana'anta damar nuna hatimin da ke tabbatar da AHAM ya yi gwajin.Identifying AHAM Verifide Products". AHAM Verifide. Archived from the original on 2 November 2013. Retrieved 20 November 2013

Lambobin CADR suna yin nuni da ɓangarorin da suka rage a cikin iska, waɗanda tacewa ko wata fasaha ba ta kama su ba. Wasu matattarar ƙarancin inganci suna amfani da ionization, wanda ke haɗa cajin wutar lantarki mai rauni zuwa ɓangarorin kwayoyin halitta, wanda zai iya haifar da ƙarami da yawa don haɗawa tare da haifar da ƙididdige ƙididdige ƙwayar ƙwayar cuta. Ionization kuma na iya haifar da ɓarnar kwayoyin halitta don haɗawa da filaye kamar bango, da bene, wanda ke haifar da ƙananan ƙididdiga a cikin iska, amma ba tare da an cire barbashi na dindindin daga iska ba.

Ƙimar tana aiki ne kawai don tacewa da aka bayar kamar yadda aka yi amfani da shi a cikin takamaiman ƙirar kayan aiki, da lokacin da tacewar ta zama sabo. An dogara ne akan ƙimar gwajin na mintuna 20. Zaɓin tace mafi girma ko ƙananan inganci fiye da naúrar da aka ƙera don na iya rage ikon tace iska. Banda shi ne lokacin da babban aikin tacewa baya rage yawan iskar fan. Ana samun wannan yawanci tare da manyan matatun jiki ko masu kauri, waɗanda yawanci ba za a iya amfani da su a cikin naúrar da aka ƙera don ƙarami masu tacewa ba. Tace masu inganci sama da na asali na iya rage saurin iskar fan ɗin, wanda zai iya haifar da ƙarancin ƙimar CADR.

Saboda tsarin aunawa, ƙimar CADR an yi nufin amfani ne kawai tare da kayan aikin da aka tsara don wuraren zama. Tsabtace ɗakuna, asibitoci, da jiragen sama suna amfani da matatun HEPA masu inganci kuma basa amfani da ƙimar CADR, amma a maimakon haka suna iya amfani da ƙimar MERV.

 Fahimtar rating 
Hatimin AHAM (yawanci ana samuwa a bayan akwatin mai tsabtace iska) yana lissafin lambobi CADR guda uku, ɗaya kowanne don hayaki, pollen, da ƙura. Wannan oda yana daga mafi ƙanƙanta zuwa manyan ɓangarorin kuma yayi daidai da mafi haɗari ga ƙananan ƙwayoyin cuta. Mafi girman lambar CADR, yawan iskar da yake tacewa a cikin minti daya don wannan girman girman barbashi. Masu amfani za su iya amfani da waɗannan ƙididdiga don kwatanta masu tsabtace iska daga masana'antun daban-daban.Saar, Ramona J. "Response to Public Comments on Proposed Test Procedure for Air Cleaner Energy Star Program" (PDF). Association of Home Appliance Manufacturers. Retrieved 20 November 2013.

Matsakaicin girman jeri na 0.09-1.0 μm don hayaki, 0.5-3 μm don ƙura, da 5-11 μm don pollen.

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