Choos­ing the right air pu­ri­fier

The Ideal Home and Garden - - Tech Talk -

Air pu­ri­fiers are cat­e­gorised in three dif­fer­ent vari­ants - fil­tra­tion, elec­tro­static pre­cip­i­ta­tion and ion­is­ing. Ac­cord­ing to the En­vi­ron­ment Pro­tec­tion Agency or EPA, its widely stated that elec­tro­static and ion­is­ing pu­ri­fiers risk cre­at­ing ozone gases. HEPA (High Ef­fi­ciency Par­tic­u­late Ab­sorber) fil­ter is the most ef­fec­tive form of air pu­ri­fier. While buy­ing an air pu­ri­fier, look for HEPA based pu­ri­fiers. Ev­ery air pu­ri­fier comes with a CADR (Clean Air De­liv­ery Rate), the more the CADR the bet­ter the air pu­ri­fier. Air pu­ri­fiers are mea­sured by MERV (Min­i­mum Ef­fi­ciency Re­port­ing Value) where the low­est rat­ing is one and the high­est twenty. HEPA fil­ters are gen­er­ally in be­tween 17 to 20.

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