best air purifiers on the market at a discount with Molekule's sale.Now through Monday, August 21, you can get a free Molekule Air Mini+ when you buy an Air Pro. Molekule's sleek and highly effective science-backed air purifiers not only capture, but break down pollutants like bacteria, viruses, mold, allergens and more.The Air Pro offers powerful protection for large rooms up to 1000 sq.ft.