Priced to sell - currently retails for $1,899 plus tax: https://www.iqair.com/ca/products/air-purifiers/gc-multigas Hospital-grade, best option on the market for people with respiratory challenges - wildfire smoke, pollution, viruses, allergens, even odors. All four filters replaced last year. Inherited from a family member's estate, I believe this was originally purchased in 2021. It's more than my household needs, so it has just been sitting here.