Blueair Blue Pure 211 Air Purifier with Particle Filter for Allergen and Odor Reduction, Washable Pre-Filter, Large Rooms, by Blueair (2016 model)

Blue Pure 211+ Light Gray Washable Pre-Filter, Removes Pollen, Dust, Pet Dander and Other Airborne Pollutants, Lunar Rock, by Blueair

Blue Pure 211+ Replacement Filter, Particle and Activated Carbon, Fits Blue Pure 211+ Air Purifier, by Blueair

Blue Pure 411 Air Purifier 3 Stage with Two Washable Pre-Filters, Particle, Carbon Filter, Captures Allergens, Odors, Smoke, Mold, Dust, Germs, Pets, Smokers, Small Room

Blue Pure 211+ Dark Gray Washable Pre-Filter, Removes Pollen, Dust, Pet Dander and Other Airborne Pollutants, Dark Shadow, by Blueair

Blue Pure 211+ Blue Washable Pre-Filter, Removes Pollen, Dust, Pet Dander and Other Airborne Pollutants, Diva Blue, by Blueair

Blue Pure 121 Air Purifier 3 Stage with Two Washable Pre-Filters, Particle, Carbon Max Odor Destroyer Filter, Captures Allergens, Odors, Smoke, Mold, Dust, Germs, Pets, Smokers, Large Room

The Book of Mistakes

Blueair Blue Pure 211 Replacement Filter, Particle and Activated Carbon for 2016 model, Fits Blue Pure 211  Air Purifier, by

Blue Pure 211+ Air Purifier 3 Stage with Two Washable Pre-Filters, Particle, Carbon Filter, Captures Allergens, Odors, Smoke, Mold, Dust, Germs, Pets, Smokers, Large Room