- How large a room will it clean?
- Blueair rates it for rooms up to 635 sq ft, with a 452 cfm dust CADR. That suits a large living room or open-plan area.
- How loud is it?
- It runs from 23 dB on low to 53 dB at maximum. Night mode keeps it near the quiet end.
- Does it work with Alexa and Google Home?
- Yes. It connects through the Blueair app and supports Alexa and Google Home voice control.
- Does it remove odors?
- It has an activated carbon layer for odors alongside the HEPA particle filter. It helps with cooking and pet smells but is not a dedicated heavy-odor unit.
- Is it worth it over the smaller Blue Pure models?
- If your room is large, the higher CADR and coverage justify it. For a bedroom, a smaller Blue Pure model costs less and is easier to move.
- When is it cheapest?
- Its best new price was $220 at eBay as of November 7, 2026. Watch for sales around major shopping events.
- Where is the Blueair Blue Pure 211i Max HEPASilent Air Purifier cheapest?
- At WoodArtSupply, for $259.99, 26% under what the other stores charge, as of our latest check.
- Where can I buy the Blueair Blue Pure 211i Max HEPASilent Air Purifier?
- 11 stores we checked sell it, including Best Buy, Target, WoodArtSupply, eBay, Abt Electronics & Appliances.