Blueair · 211i Max
Ready to buy
The retained reference is $349.99 current direct U.S. price. Confirm purifier-only versus filter subscription, selected filter type, included fabric color and current promotion. Confirm an exact genuine replacement filter is available before the return window closes.
Current market
Each line carries its own check date because price, software, specifications, and product cycle do not age at the same speed.
Confirm purifier-only versus filter subscription, selected filter type, included fabric color and current promotion. Confirm exact current U.S. checkout price, tax and delivery before paying.
Blue Pure 211i Max is the strong value when 410 cfm AHAM CADR and app scheduling outweigh its large round footprint and integral electrostatic stage, after confirming noise at the speed the room needs.
Other paths
These are not generic competitors. Each one represents a different way to buy into the same market.
Blueair
Levoit
What changed
Older observations stay in the ledger when the current view changes. That lets a buyer tell the difference between an old complaint, an active issue, and a problem that was corrected.
Blue Pure 211i Max was checked against exact manufacturer identity and operating material, current U.S. price, filter availability and cost, room-size test basis, independent comparison and bounded owner evidence.
Each amount stays tied to its source and capture date. Conflicting prices remain visible until the seller resolves them.
Current reference priceA structured timeline will begin with the next source capture
Owner experience
Owner discussion returns to top-speed sound, app reliability, fabric care, particle readings and filter-choice cost rather than a universal air-quality outcome.
These are self-reported experiences from different room volumes, ceiling heights, layouts, sources, outdoor conditions, fan speeds, filter ages, placements, app versions, electrical conditions and individual sensitivities. They identify checks to run and do not prove exposure reduction, symptom improvement, gas removal, smoke safety, mold remediation, reliability or failure rates.Exact-model owners discuss app reliability, fan sound, fabric care, sensor readings and filter life across different rooms.
Compare the CADR retained at a tolerable speed, check the app's offline behavior and decide explicitly whether integral electrostatic operation is acceptable.
1 evidence recordSources
The page separates what a source states directly from what we conclude across sources.
Blueair identifies exact model 211i Max as a 360-degree intake cylinder with 410 cfm particle CADRs, app control, PM1/PM2.5/PM10 sensing and integral HEPASilent electrostatic assistance.
$349.99 current direct U.S. price was retained for exact model 211i Max. Confirm purifier-only versus filter subscription, selected filter type, included fabric color and current promotion
The exact 211i Max uses a washable fabric pre-filter and one model-specific Particle & Carbon filter; SmokeBlock and AllergenBlock are different media choices with different prices and bounded claims Blueair publishes 410 cfm for smoke, dust and pollen and 674 square feet at 4.8 ACH. Larger 1,618- and 3,235-square-foot claims reflect two and one hourly changes Published conditions are 23 to 53 dB and up to 46 W across speeds 1–4, auto and night; RTINGS measured 419 cfm PM1 CADR at maximum and 224 cfm below 45 dBA PM1, PM2.5 and PM10 readings inform the display and auto mode; they are consumer particle estimates and do not detect CO, CO2 or most VOCs
The standard genuine 211i Max filter is $69.99, with SmokeBlock about $84.99 and maker tracking based on use; annual cost depends on filter choice and loading Vacuum or wash and completely dry the fabric pre-filter, keep the 360-degree intake and top outlet open, replace the main filter when indicated and avoid wetting the sensor or electronics The Blueair app provides schedules, remote control, readings and notifications through Wi-Fi and a cloud account; review privacy and confirm local behavior if the service is unavailable Blueair publishes an exact manual, a 30-day trial, model-specific filters and warranty extension after registration; preserve proof and verify subscription cancellation terms
EPA treats portable filtration as a supplement to source control and clean-air ventilation, sizes particle cleaners by CADR and room volume, separates particle from gas filtration and states that no air cleaner removes every pollutant.
AHAM's suggested room size uses 4.8 air changes per hour and publishes separate tobacco-smoke, dust and pollen CADRs; room height and desired repetition remain part of sizing.
CARB certification addresses low ozone emissions and electrical safety under its regulation; CARB explicitly says listing does not establish cleaning effectiveness or complete health safety.
Independent 2026 testing measures top-speed and quiet-speed PM1 CADR, sound, controls, footprint, filter construction and the integral ionization boundary.
Exact-model owners discuss app reliability, fan sound, fabric care, sensor readings and filter life across different rooms.
Blue Signature Large is the design-led connected large-room filtration alternative at $449.99 current direct U.S. price.
Core 600S-P is the high-output connected mechanical value alternative at $269.99 current direct sale; $299.99 list.
Manufacturer identity, exact filter and manual or support material, current U.S. price, AHAM or published CADR and room-size basis, independent comparative or instrumented editorial, CARB ozone context, EPA limitations and bounded owner evidence were checked on August 17, 2026. This desk covers complete current U.S.-market portable room air purifiers for serious home use. It excludes HVAC filters, industrial scrubbers, dehumidifiers, unsupported marketplace devices, filter-only products and cosmetic-only variants. CADR measures particle clean-air delivery under stated conditions; it is not a gas-removal rating, health guarantee or proof that one unit serves a whole home. Room-size headlines at one, two and 4.8 air changes per hour are not interchangeable. Sound, energy, filter efficiency, sensor readings, app features, auto modes, carbon labels, HEPA wording, CARB listing and ENERGY STAR status each have separate test boundaries. Source control and clean-air ventilation remain primary. No purifier prevents, treats or diagnoses illness, guarantees exposure reduction or smoke safety, remediates mold or assures universal indoor-air outcomes. Carbon monoxide alarms, moisture repair, professional hazardous-material work and public-health guidance remain separate needs.
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