Head to head

Blueair Protect 7470i vs Honeywell HPA300 HEPA Air Purifier

Blueair Protect 7470i leads 3 to 2 on the 5 rankable specs, but Honeywell HPA300 HEPA Air Purifier costs $400 less.

Catalog as of September 1, 2026

Why, in numbers

CADR: Blueair Protect 7470i lists 270 CFM (Smoke), 275 CFM (Dust), 280 CFM (Pollen) (Blueair sheet, 2026-09-02); Honeywell HPA300 HEPA Air Purifier lists 300 CFM (Smoke), 320 CFM (Dust), 300 CFM (Pollen) (Honeywell sheet, 2026-09-02).
Coverage area: Blueair Protect 7470i lists 1,035 sq ft (2 air changes/hr) / 418 sq ft (5 air changes/hr) (Blueair sheet, 2026-09-02); Honeywell HPA300 HEPA Air Purifier lists 465 sq ft (4.8 air changes/hr) / 2,250 sq ft (1 air change/hr) (Honeywell sheet, 2026-09-02).
Room size: Blueair Protect 7470i lists Master bedrooms, living areas up to 418 sq ft (5 ACH) (Blueair sheet, 2026-09-02); Honeywell HPA300 HEPA Air Purifier lists Extra large rooms, master suites, open spaces up to 465 sq ft (4.8 ACH) (Honeywell sheet, 2026-09-02).
Filter types: Blueair Protect 7470i lists SmartFilter with Smart RFID chip (HEPASilent Ultra + Activated Carbon) (Blueair sheet, 2026-09-02); Honeywell HPA300 HEPA Air Purifier lists Type A Activated Carbon Pre-filter + 3× Type R True HEPA filters (Honeywell sheet, 2026-09-02).
Filter life: Blueair Protect 7470i lists 6–12 months with real-time algorithm filter tracking (Blueair sheet, 2026-09-02); Honeywell HPA300 HEPA Air Purifier lists 3 months (Pre-filter) / 12 months (True HEPA filters) (Honeywell sheet, 2026-09-02).

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

Blueair Protect 7470i

$6493 spec wins

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Honeywell HPA300 HEPA Air Purifier

$2492 spec wins

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Buying for

Every rankable spec counts once. Pick a lens to score only what matters for your air purifier.

Straight answer

Overall: 3 to 2

Buy the Blueair Protect 7470i.

Leads 3 of 5 rankable overall specs; Honeywell HPA300 HEPA Air Purifier takes 2.
Coverage area: 1,035 sq ft vs 465 sq ft
Filter life: 6–12 months with real-time algorithm filter… vs 3 months
Honeywell HPA300 HEPA Air Purifier is $400 cheaper. Pay the difference only if coverage area matters to you.

Check first: the Blueair Protect 7470i weighs over 25 lb (11 kg). Tick them under deal-breakers if that rules it out.

3 Blueair Protect 7470i5 rankable of 11 specsHoneywell HPA300 HEPA Air Purifier 2

Deal-breakers

tick what would make you walk away

Over 55 dB on highrow
Louder than normal conversation at full speed.
Clear:Blueair Protect 7470i · 22 dB (Low) – 45 dB (High)Trips:Honeywell HPA300 HEPA Air Purifier · 38 dB (Low) – 58 dB (Turbo)
Under 1,000 sq ft coveragerow
Undersized for an open-plan living area.
Clear:Blueair Protect 7470i · 1,035 sq ftTrips:Honeywell HPA300 HEPA Air Purifier · 465 sq ft
Over 25 lb (11 kg)row
Hard to move between rooms.
Trips:Blueair Protect 7470i · 27.6 lbClear:Honeywell HPA300 HEPA Air Purifier · 17.0 lb

At a glance

The handful of numbers that decide most purchases in this category.

2 of 2 differ

CADR

Blueair

270 CFM (Smoke), 275 CFM (Dust), 280 CFM (Pollen)

Honeywell

300 CFM (Smoke), 320 CFM (Dust), 300 CFM (Pollen)

Coverage area

Blueair

1,035 sq ft (2 air changes/hr) / 418 sq ft (5 air changes/hr)

Honeywell

465 sq ft (4.8 air changes/hr) / 2,250 sq ft (1 air change/hr)

True 3-Year Cost of Ownership (TCO)

Upfront price + 3 years of consumables, fees & essential add-ons

Blueair Protect 7470i

Upfront list price$649

3-Yr SmartFilter RFID dual-layer (Every 12 months (~$80/yr))+$240

3-Year Estimated Total$889

Honeywell HPA300 HEPA Air Purifier

Upfront list price$249

3-Yr 3x HRF-R3 HEPA + 4x Pre-filters (Annual full filter set (~$65/yr))+$195

3-Year Estimated Total$444

Room Placement & Bedroom Noise Check

Physical clearance required for airflow, wall placement, and bedroom noise levels.

Ergonomic & Spatial Check

Wall Clearance Required

Cylindrical 360° filters cannot sit flush against walls without choking intake.

Blueair

Requires 12 in perimeter airflow space

Honeywell

Front grille intake: can back up close to baseboards

Nighttime Sleep Mode Noise

Levels below 25 dB are virtually silent for light sleepers.

Blueair

Standard sleep speed

Honeywell

30 dB lowest fan speed (noticeable background white noise)

Unit Footprint & Dimensions

Blueair

Standard room purifier footprint

Honeywell

Large commercial-grade shell (20.8 × 22.3 × 10.8 in; 17.0 lb)

The 90-Day Owner Regret Check

Documented ergonomic quirks, hardware annoyances, and maintenance realities reported by real owners.

Post-Purchase Truths

Blueair: What to watch for

Maintenance
Requires periodic filter replacements to maintain airflow and odor capture.
Activated carbon and HEPA media gradually saturate, needing replacement once or twice yearly depending on air pollution and pet shedding.

Honeywell: What to watch for

Maintenance
Requires periodic filter replacements to maintain airflow and odor capture.
Activated carbon and HEPA media gradually saturate, needing replacement once or twice yearly depending on air pollution and pet shedding.

Blueair Protect 7470i$6493 wins

Honeywell HPA300 HEPA Air Purifier$2492 wins

Performance Filters Usability & Smart Design & Ownership

11 of 11 attributes differ. Identical rows are dimmed.

Performance

3 differences

Performance specifications. Middle column is Blueair Protect 7470i, right column is Honeywell HPA300 HEPA Air Purifier.
CADR	270 CFM (Smoke), 275 CFM (Dust), 280 CFM (Pollen)	300 CFM (Smoke), 320 CFM (Dust), 300 CFM (Pollen) (wins this row: higher)
Room size	Master bedrooms, living areas up to 418 sq ft (5 ACH)	Extra large rooms, master suites, open spaces up to 465 sq ft (4.8 ACH)
Coverage area	1,035 sq ft (2 air changes/hr) / 418 sq ft (5 air changes/hr) (wins this row: higher)	465 sq ft (4.8 air changes/hr) / 2,250 sq ft (1 air change/hr)

Filters

leads 1-0

Filters specifications. Middle column is Blueair Protect 7470i, right column is Honeywell HPA300 HEPA Air Purifier.
Filter types	SmartFilter with Smart RFID chip (HEPASilent Ultra + Activated Carbon)	Type A Activated Carbon Pre-filter + 3× Type R True HEPA filters
Filter life	6–12 months with real-time algorithm filter tracking (wins this row: higher)	3 months (Pre-filter) / 12 months (True HEPA filters)

Usability & Smart

leads 1-0

Usability & Smart specifications. Middle column is Blueair Protect 7470i, right column is Honeywell HPA300 HEPA Air Purifier.
Noise levels	22 dB (Low) – 45 dB (High) (wins this row: lower)	38 dB (Low) – 58 dB (Turbo)
Energy consumption	43 W max power (Energy Star certified)	130 W max power consumption
Smart features	Blueair App, Alexa, Google Home, GermShield 24/7 background mode	No (manual touch controls with 2/4/8 hr auto-off timer)
Air quality sensors	Laser particle sensor (PM1, PM2.5, PM10), TVOC, Temp, Humidity	No automated air quality sensors (filter replacement indicators)

Design & Ownership

leads 1-0

Design & Ownership specifications. Middle column is Blueair Protect 7470i, right column is Honeywell HPA300 HEPA Air Purifier.
Weight	27.6 lb (12.5 kg)	17.0 lb (7.7 kg) (wins this row: lower)
Warranty	5 years (with product registration)	5 years manufacturer limited warranty

Most rows are from the official spec sheet. Marked rows are other published figures or our summary, not lab tests we ran.

Blueair Protect 7470i source Honeywell HPA300 HEPA Air Purifier source

Which one should you buy

Pick this one if

Blueair Protect 7470i

HEPASilent Ultra smart air purifier with 24/7 GermShield bacterial protection and SpiralAir 360 vents.

HEPASilent Ultra electrostatic + mechanical filtration kills 99% of germs
SpiralAir omnidirectional airflow distributes clean air evenly
Premium matte build with intuitive LCD air quality touchscreen

What you give up

SmartFilter replacements are relatively costly
Heavier metallic construction

Full Blueair Protect 7470i specs →

Pick this one if

Honeywell HPA300 HEPA Air Purifier

Extra-large room True HEPA air purifier with Turbo Clean mode, dual-stage filtration, and AHAM Verifide CADR ratings for large rooms.

Powerful high-volume CADR (300+ CFM) for large rooms up to 465 sq ft
Certified True HEPA captures 99.97% of airborne particles
Durable workhorse build with touch-button controls

What you give up

High power consumption (up to 130W on Turbo)
No Wi-Fi app or smart automated air quality sensors

Full Honeywell HPA300 HEPA Air Purifier specs →

Best for each use

Bedrooms

Quiet nights: low-speed noise, sleep mode, schedules from your phone

Tied on bedrooms. Honeywell HPA300 HEPA Air Purifier is cheaper.

The 2 rankable bedrooms specs split 1 to 1.
Saves $400 at list price.

Big rooms & allergies

Open-plan rooms or allergies: CADR, coverage, filter grade

For big rooms & allergies, buy the Blueair Protect 7470i.

Leads 2 of 3 rankable big rooms & allergies specs; Honeywell HPA300 HEPA Air Purifier takes 1.
Coverage area: 1,035 sq ft vs 465 sq ft
Filter life: 6–12 months with real-time algorithm filter… vs 3 months
Honeywell HPA300 HEPA Air Purifier is $400 cheaper. Pay the difference only if coverage area matters to you.

Low running cost

Cheap to own: filter life, power draw, warranty

Too close to call on low running cost from the spec sheets. Only filter life is rankable here.

Energy consumption: 43 W max power vs 130 W max power consumption
Warranty: 5 years vs 5 years manufacturer limited warranty

Every answer above is scored from published figures. A lens uses only the rows that matter for that use, including marked rows that are not on the official sheet. Switch lenses interactively in the panel above.

Done deciding?

Open the full standalone spec sheet for either device.

Blueair Protect 7470i spec sheet Honeywell HPA300 HEPA Air Purifier spec sheet

Manufacturer pages: Blueair Protect 7470i ↗ · Honeywell HPA300 HEPA Air Purifier ↗

Common questions

Which is cheaper, the Blueair Protect 7470i or the Honeywell HPA300 HEPA Air Purifier?

Honeywell HPA300 HEPA Air Purifier costs $400 less at list price.

What is the biggest catch with the Blueair Protect 7470i or Honeywell HPA300 HEPA Air Purifier?

Honeywell HPA300 HEPA Air Purifier has this deal-breaker: over 55 dB on high. Louder than normal conversation at full speed.

Which is better for bedrooms, the Blueair Protect 7470i or the Honeywell HPA300 HEPA Air Purifier?

Tied on bedrooms. Honeywell HPA300 HEPA Air Purifier is cheaper. The 2 rankable bedrooms specs split 1 to 1. Saves $400 at list price.

What cannot be compared from spec sheets?

Of the 11 specs tracked here, 6 are descriptive and cannot be ranked on numbers alone. Spec sheets also cannot measure subjective factors like build quality, real-world performance, or comfort.

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