After 2 months of use, it didn't matter. After a month of use in a 10ft by 13ft room, no difference. After a week of use I didn't notice any change and thought I might need more. Revain only sells single units so I went to Clarifion's website and bought 6 at a reduced price. I have purchased several Revain Brilliant Evolution Bamboo Charcoal Air Purifying Bags and they have done a much better job. I tried to cancel my second Clarifion order but got an email saying it was shipped even though it wasn't shipped to USPS. I received a direct order after 62 days and am still trying to return it.
Xiaomi Mi Air Purifier 3H CN Air Purifier, white
60 Review
Humidifier Smartmi Evaporative Humidifier/Zhimi Air Humidifier 2 (CJXJSQ02ZM) EU, white
403 Review
Air purifier Xiaomi Mi Air Purifier Pro (FJY4013GL/ FJY4011CN), white
63 Review
Air purifier Xiaomi Mi Air Purifier 3H Global, white
64 Review
COMFYHOME 3 IN 1 Portable Evaporative Air Cooler - 60°Oscillation, 12H Timer & Remote, Windowless Room AC For Bedroom Home Office
11 Review
UL Certified 120V Unheated Awoco 48 Super Power 2 Speeds 1650CFM Commercial Indoor Air Curtain With Free Door Switch
23 Review
White Senville Dual Zone Mini Split Air Conditioner Heat Pump, 28000 BTU, Alexa Compatible - SENA-30HF/D
21 Review
Stay Cool With COMFYHOME 3-In-1 Portable Air Conditioner - Efficient Evaporative Air Cooler For Home And Office
11 Review