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BLUEAIR Air Purifiers for Home Large Room up to ...

By Blueair · Air Purifiers · Home & Workspace · More from Blueair

  • CADR 350 CFM (dust/smoke/pollen)
  • Coverage 540 sq ft
  • Noise 31-56 dB
  • Power 30-60W, Energy Star
  • Weight 12.5 lbs, 20.7 x 13 x 13 in

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Summary

A large-room air purifier that moves a lot of air for the money, built for buyers who want simple manual control and no app. Check two things first: the HEPASilent filter is not true HEPA, and the ionizer cannot be switched off.

Strengths

  • Moves 350 CFM, one of the highest CADR ratings you can get for under $300.
  • Simple one-button control with no app or account needed.
  • Clears smoke and allergens fast; owners report fewer allergy symptoms.
  • 31 dB on low is quiet enough for a bedroom.
  • Uses 30 to 60 W, low for the airflow it delivers.
  • Washable pre-filter stretches the life of the main filter.

Weaknesses

  • Not true HEPA; HEPASilent charges particles and traps them in looser media.
  • The ionizer cannot be turned off, so buyers avoiding ozone have no option.
  • Owners report a chemical or fragrance smell from new carbon filters.
  • 56 dB on high is loud, and Consumer Reports found the earlier 211 relatively loud even on low speed.
  • Replacement filters cost $70 to $90 every six months.
  • The model is out of stock or discontinued on Blueair’s US site.

Verified specifications

ModelBlue Pure 211+ (non-Auto).
Region and electricalUS 120 V, 60 Hz.
Controlmanual three-speed, one front button.
CADR350 CFM for dust, smoke and pollen, AHAM certified.
Coverage540 sq ft at 4.8 air changes per hour.
Noise31 dB on low, 56 dB on high.
Power30–60 W.
Energy Star certified.
FilterHEPASilent particle filter, replaced about every six months.
Filter optionsParticle + Carbon $69.99, SmokeBlock $79.99, AllergenBlock $89.99.
Pre-filterwashable fabric, sold in several colours for $8.99 to $11.99.
Sensors and appnone — no air-quality sensor, auto mode, Wi-Fi, app, child lock or timer.
Ionizerbuilt in and cannot be disabled.
Dimensionsabout 20.7 × 13 × 13 in.
Weight12.5 lbs.
Full research notes and sources

Filtration: what HEPASilent is

Blueair’s HEPASilent system gives particles an electrostatic charge before mechanical capture, which lets the media be less dense than a true HEPA filter. The result is high airflow at lower noise and power, but the ionizer is always on and cannot be disabled. Blueair says ozone output is negligible and within safety limits; the concern for some buyers is the principle, not a measured level.

Performance and room size

HouseFresh tested the 211+ in a 728 cubic ft room and measured a 350 CFM CADR, clearing it in 18 minutes at top speed, with a recommended room size of 540 sq ft at 4.8 air changes per hour. Modern Castle’s one-hour test cut PM2.5 from 9.5 to 0.1 and particulates from 1,299 to 15, a 98.8% reduction. It is a particle machine; for odors you need the carbon filter option, since the standard setup targets particles.

Filters and running costs

The HEPASilent filter is rated for about six months; the indicator light turns red and you reset it by holding the centre button for 7 to 10 seconds. Filters run $69.99 for Particle + Carbon, $79.99 for SmokeBlock and $89.99 for AllergenBlock, and Clean Air Critic puts annual filter cost near $140 to $180 across two changes. The washable fabric pre-filter costs $8.99 to $11.99 and lasts indefinitely; owners who skip washing it report it holding dust and picking up odours.

Availability and upkeep

The 211+ is out of stock on Blueair’s US site and looks discontinued, with the 211i Max as its successor. Filters differ between the manual 211+ and the 211+ Auto, and using the wrong one cuts CADR and voids the warranty. Beyond the filter and pre-filter there are no user-serviceable parts, and the warranty is one year, extendable to three with registration.

Is it worth it?

Under $200 it is strong value and from $201 to $280 still good for the CADR; past that, compare the 211i Max, a Levoit Core 600S or a Coway Airmega 250S. Consumer Reports lists it at $399.99, which is weak value for a manual unit. The case rests on airflow per dollar, not on features the 211+ does not have.

Which model this is

This is the Blue Pure 211+, the non-Auto version with a single front button; the 211+ Auto adds a particle sensor and auto mode and has a top button. Do not confuse it with the 211i Max, the smaller 311 and 411, or the Classic series. The US listing for this model is ASIN B073WJL99W.

Sources

Manufacturer:

Independent reviews:

Owner reports:

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