Blueair 211+ Large-Room HEPA Air Purifier (Non-Auto)

The Blueair 211+ is a True HEPA air purifier designed for large rooms, featuring HEPASilent dual-stage filtration (HEPA + activated carbon) with a CADR of 246 (dust, tobacco smoke, pollen). Rated for rooms up to 540 sq ft, it runs whisper-quiet on low (~31 dB) and reaches ~48 dB on high. The washable pre-filter extends the life of the main filter cartridge, reducing waste. No smart features—manual fan control only, no air-quality sensor or app. Replacement filters are proprietary and pricey (~$80–100 every 6–12 months depending on usage). Best for: allergy/asthma sufferers in large bedrooms or living rooms who prioritize quiet operation and true HEPA filtration, but can accept higher filter costs and no automation. Blueair has strong brand trust in air-quality circles, though the 211+ is positioned as a premium option ($200–250), making it less compelling than value alternatives like LEVOIT Core 300 or Winix.