I bought this at the beginning of the Seattle wildfire smoke out. I also have a pet with allergies that cause his inner eye to build up with boogers. Third, I sometimes enjoy cannabis and don't want my place to stink. This compact and light air purifier knocked out all three problems: wildfire smoke - gone, dust/general air pollution (and eye boogers) - gone, and Mary Jane smoke - very quickly sucked up and deodorized when detected by the air quality monitor. Very highly recommended!