In case your air excellent is undesirable so you don’t have an air purifier, an HVAC filter taped to your box fan is better than nothing. มีขนาดกะทัดรัด พกพาไปใช้งานได้อย่างสะดวกในทุกที่ The filter on The underside is run 24/seven to get a 12 months—that’s dust, pollen, and various captured gunk rendering it dim. https://www.mannature.com/products/detail/airpurifier