I want to say smthing about this purifier this is very gud for giving you very good air filteration im limdited area of coverage.
In my grandfathers room im using this purifier for fresh air . because he is victim of astma so I eperienced that by this product they can easily get fresh air . and the have realise tht they can easily breathe . this product is quit usefull for the astma victims or the pther persons who r able to use this product and the price of this product is very cheap as compared to other medicines cost