1. Alen BreatheSmart high-quality Purifier. It is 10 x 17.8 x 26.8 inches, 20 pounds and covers 1100 SQ feet of operation. It has WhisperMax technology. (4.7 rating)
2. Winix WAC9500 air purifier. True HEPA filtrating with washable anti-bacterial filters. (4.5 rating)
3. Whirlpool AP51030K. 500 SQ feet coverage. Very effective in working, quiet, easy to operate and it is a true HEPA. (4.4 rating)
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