Not as good a performance as expected
I purchased 3 for my 700 sq ft apt  One in the living room, one in the bedroom and one in the bathroom where my Cats litter box is.  After 2 months of use, I have noticed a slight difference, but was hoping for a big difference of freshness to my apartment.  I still can smell cat food when I come home after work and sometimes litter box odor.  ( i keep the litter box clean daily and change the litter out weekly).  Disappointed that using 3 purifiers and only a slight difference if any.
Rating: 4 stars