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Alen · Air purifiers

Alen BreatheSmart 75i Large Room Air Purifier

Commercial-grade quiet purifier cleaning up to 1,400 sq ft every 30 minutes with a lifetime warranty.

List price

$749

11 attributes tracked

Catalog as of September 1, 2026

Manufacturer list price, not a live offer. Confirm current pricing before you buy.

CADR

350 CFM across Smoke, Dust, Pollen

Coverage area

1,400 sq ft (2 air changes/hr) / 700 sq ft (4 air changes/hr)

What it does well

  • Industry-exclusive transferable Lifetime Warranty
  • Tuned pink noise frequencies promote deeper sleep on WhisperMax mode
  • Medical-grade H13 True HEPA filter lasts up to 15 months

Where it gives ground

  • High initial investment
  • Tall tower profile

Compare it head to head

The fastest way to decide is against the product you are actually cross shopping. Showing 4 of 12 published matchups.

Air purifiers11 differing specs

Alen BreatheSmart 75i Large Room Air Purifier

$749

Blueair Blue Pure 211+ Auto

$339

Blueair leads on 3 of 5 rankable specs and costs less.

See the breakdown
Air purifiers11 differing specs

Alen BreatheSmart 75i Large Room Air Purifier

$749

Blueair Blue Pure 311i Max

$229

Evenly split on rankable specs, so price and taste decide it.

See the breakdown
Air purifiers11 differing specs

Alen BreatheSmart 75i Large Room Air Purifier

$749

Blueair Protect 7470i

$649

Alen leads on 4 of 5 rankable specs, but Blueair saves $100.

See the breakdown
Air purifiers11 differing specs

Alen BreatheSmart 75i Large Room Air Purifier

$749

Coway Airmega 250

$399

Alen leads on 3 of 5 rankable specs, but Coway saves $350.

See the breakdown

Full specifications

Performance

CADR
350 CFM across Smoke, Dust, Pollen
Room size
Large master suites, open living rooms, offices
Coverage area
1,400 sq ft (2 air changes/hr) / 700 sq ft (4 air changes/hr)

Filters

Filter types
Medical-grade H13 True HEPA + Antimicrobial layer + Heavy Odor Carbon
Filter life
12–15 months extra long filter life

Usability & Smart

Noise levels
25 dB (WhisperMax) – 49 dB (Turbo speed)
Energy consumption
45 W (Energy Star certified)
Smart features
Alen Air App (Wi-Fi), auto modes, color ring status
Air quality sensors
Laser air quality sensor detecting fine particle levels with 5 color rings

Design & Ownership

Weight
27.0 lb (12.2 kg)
Warranty
Lifetime warranty (with active filter subscription)
Most rows are from the official spec sheet. Marked rows are other published figures or our summary, not lab tests we ran.Official Alen BreatheSmart 75i Large Room Air Purifier spec sheet (opens in a new tab)

Other air purifiers we track

Dyson

Dyson Purifier Hot+Cool Formaldehyde HP09

$799

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Blueair

Blueair Protect 7470i

$649

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Coway

Coway Airmega 400

$549

CompareSpecs

Coway

Coway Airmega 250

$399

CompareSpecs

Blueair

Blueair Blue Pure 211+ Auto

$339

CompareSpecs

Levoit

Levoit Core 600S Smart True HEPA

$299

CompareSpecs

Frequently asked

How much does Alen BreatheSmart 75i Large Room Air Purifier cost?

Alen BreatheSmart 75i Large Room Air Purifier lists at $749 (manufacturer list price snapshot as of 2026-09-01). Retail prices vary by merchant and this is not a live quote.

What are Alen BreatheSmart 75i Large Room Air Purifier’s key specs?

Key specifications for Alen BreatheSmart 75i Large Room Air Purifier include cadr (350 CFM across Smoke, Dust, Pollen) and coverage area (1,400 sq ft (2 air changes/hr) / 700 sq ft (4 air changes/hr)).

What does Alen BreatheSmart 75i Large Room Air Purifier compare against?

Alen BreatheSmart 75i Large Room Air Purifier is compared head to head against Alen BreatheSmart 75i Large Room Air Purifier vs Blueair Blue Pure 211+ Auto, Alen BreatheSmart 75i Large Room Air Purifier vs Blueair Blue Pure 311i Max, Alen BreatheSmart 75i Large Room Air Purifier vs Blueair Protect 7470i, Alen BreatheSmart 75i Large Room Air Purifier vs Coway Airmega 250, Alen BreatheSmart 75i Large Room Air Purifier vs Coway Airmega 400, and Alen BreatheSmart 75i Large Room Air Purifier vs Coway Airmega AP-1512HH Mighty.