Blue 121 | Air purifier for up to 620 ft² | Blueair
Amazon.com: 211+ Replacement Filter Compatible with Blueair Blue Pure 211+ Air Cleaner Purifier, Foldable Particle and Activated Carbon Replacement Filter : Home & Kitchen
Blue Pure 211i Max | Air purifier for up to 635 ft² | Blueair
Amazon.com: Blueair Blue Pure 121 Air Purifier 3 Stage with Two Washable Pre-Filters, Particle, Carbon Filter, Captures Allergens, Viruses, Odors, Smoke, Mold, Dust, Germs, Pets, Smokers, Large Rooms : Home & Kitchen
Amazon.com: BLUEAIR Blue Pure 411 Auto, 411, 411+ Genuine Replacement Filter, Particle and Activated Carbon, fits Blue Pure 411 Auto, 411 and 411+ Air Purifiers : Home & Kitchen