Blueair Blue Pure 411i Max Air Purifier

The verdict

The 411i Max is Blueair's small-room purifier: HEPASilent filtration (a charged fiber layer plus a mechanical filter) that captures fine particles, dust, pollen, and pet dander, with a CADR of 141 for smoke, dust, and pollen. It cleans a 526-square-foot room in about 30 minutes, runs from 18 to 46 dB (Quiet Mark certified), and uses less power than an LED bulb on low.

Blueair Blue Pure 411i Max Air Purifier — about $170 at Amazon · 4.5★ · a compact, quiet, smart air purifier for bedrooms and small rooms, with washable pre-filters and cheap replacement filters.

The Blueair app gives air-quality readings and scheduling, and the fabric pre-filter is washable and comes in colors. It is Energy Star certified and AHAM Verifide tested.

Specs

  • HEPASilent filtration for fine particles, dust, pollen, and pet dander
  • CADR 141 for smoke, dust, and pollen; AHAM Verifide tested
  • Cleans up to 526 sq ft in about 30 minutes
  • Quiet Mark certified, 18–46 dB
  • Washable fabric pre-filter in multiple colors
  • Blueair app control with air-quality readings
  • Replacement filter about $30, every 6–9 months
  • Energy Star certified

Blind details

For a blind shopper, the small size and simple controls are the appeal: one unit, one button row, and app or voice control through the Blueair app for the rest. Listen for reviews about noise on each fan speed — 18 dB on low is genuinely bedroom-quiet, while high speed is audible — and about the filter-change light, which is the cue to learn by position since it is visual. The replacement filter at about $30 every 6 to 9 months is one of the cheapest in the category, which matters more over five years than the purchase price. Confirm this is the 411i Max and not the older Blue Pure 411 or the bigger 211i Max, which share similar names and very different coverage.

Support: Reachable — phone 1-888-258-3247 and email info@blueair.com (published by Blueair, Mon–Fri except US holidays).

Honest caveats: this is a small-room machine — a 526-square-foot rating at about two air changes per hour means it is a bedroom or office purifier, not a living-room one. The list price is $169.99 but sales regularly drop it toward $120, and a two-pack deal has run near $205, so confirm the single-unit price at checkout. Some owners report weaker odor removal than particle removal, and high fan speeds are louder than the quiet-marketing suggests. Do not confuse it with the Blue Pure 211i Max already in this catalog — the 411i Max is the smaller sibling.

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Last reviewed: October 2026.