it's a worthy air purifier....I have the prior model...better to be over kill then not worthy. you can get off brand filters crazy cheaper on AMAZON. I run mine 24/7 helps some for my dust mite allergy since I can not get rid of my carpet. to be honest...can't even hear it at all. has a auto mode that goes into sleep mode when the light in the room goes dark. ...so quiet...

Winix 5300-2 Air Purifier with True HEPA, PlasmaWave and Odor Reducing Carbon Filter,Gray

https://www.amazon.com/dp/B01D8DAYBA/ref=cm_sw_r_cp_api_glt_fabc_NC8CWGXFTVKESBEC0DYB?_encoding=UTF8&psc=1

Winix 5300-2 Air Purifier with True HEPA, PlasmaWave and Odor Reducing Carbon Filter https://www.amazon.com/dp/B01D8DAYBA/ref=cm_sw_r_cp_apa_i_yanUDbS9XT4S9

Amazing at particle removal, i have 1 in each room and am nearly unaffected by the smoke.