Blueair Classic 605

Blueair Classic 605 Review

The Sweden brand that is long promoted on its filtration capacity, Blueair 605 is an exceptional air purifier for long-haul as proven on its build quality and reliability. With the combination of conventional controls and modern Wi-Fi based controls via app, it is straightforward to use and remarkable for owner with children that loves fiddling. By comparison with the air flow delivery rate, coverage, noise level and power consumption, exactly what options would make Blueair Classic 605 terrific and is it worth the unavoidable premium price tag? Explore more about 605 air purifier review below.
± 749.99 p
     Annual filter ^    
± 230 - 460 p
Online price*
Latest Amazon price

Blueair 605 Specification

ProductBlueair 605
20 x 26 x 13 in
(50.8 x 66 x 33 cm)
Weight35 lb (15.9 kg)
Coverage (up to)775 sq. ft. (72 m2)
Dust free (CADR)500 cfm (849 m3/h)
Pollen free (CADR)640 cfm (1087 m3/h)
Smoke free (CADR)500 cfm (849 m3/h)
Airflow speed150 - 650 cfm (255 - 1104 m3/h)
- Lifespan
- Replacement cost ($)
HEPA filter
- Lifespan
- Replacement cost ($)
Blueair Classic 500/600 Series Particle Filter
6 - 12 months
+- 79.95
Carbon filter
- Lifespan
- Replacement cost ($)
Blueair Classic 500/600 Series SmokeStop Filter
6 - 12 months
+- 149.95
Ionizer/ TechnologiesHEPASilent Technology
UV-light/ PCO
Other filter
All-in-one filter
- Lifespan
- Replacement cost ($)
Optional/ Addon
Noise level32 - 62 dB(A)
Power consumption15 - 100 W
Timer/ SchedulerVia App
More color options
Auto mode
Air qualityAQ indicator
Filter change indicator
Wi-Fi/ BTBluetooth
Remote control
Child lock
Warranty5 years
Email/ Phone support

Product image

Blueair 605 key features

  • 3-stage filtration with HEPASilent Technology
  • Wi-Fi ready (Blue Friend app/ Alexa)
  • Smartphone Controlled (timer, fanspeed, LED light, night mode, child lock, tracking)
  • Electrostatic Particle-charging
  • 500/600 Series Particle Filter
  • 500/600 Series SmokeStop Filter
  • 3 fan speed
  • Built-in casters
  • [OPTIONAL] Blueair Aware monitor
  • 5 years warranty

Blueair 605 review

  • Widest purifying coverage and strongest airflow in its Classic series.
  • HEPASilent Technology that electrostatically charge particles before passing to filter media.
  • Highly effective gradient structured particle filter and SmokeStop Filter.
  • Very impressive dust, pollen and smoke CADR return.
  • Top-notch build quality with its durable galvanized steel body.
  • Wi-Fi connects easily and works well with the intuitive Blueair Friend app or Amazon Alexa.
  • Up to 5 years warranty.
  • The most expensive model in Blueair Classic series.
  • Very high annual filter replacement cost.
  • Lacks stand-alone pre-filter that would capture large particles from other filters.
  • Lacks integrated air sensors for air quality monitoring and Auto mode. Requires the addon purchase Blueair Aware monitor to enable the feature.
  • Bulky and heavy although we expect no less.

The starters

Blueair 605 dimension
20 x 26 x 13 in
(50.8 x 66 x 33 cm)
Blueair 605 weight
35 lb (15.9 kg)

Premium and classic design at its best, Blueair 605 retain its timeless console design and galvanized steel built up that feels more premium than other. The 20 x 26 x 13 in dimension and 35 lb weight is certainly not compact where you could squeeze it in a tight corner. Good thing is the air purifier comes standard with 2 side handles and casters to ease its mobility. Unlike most petroleum-based plastic air purifier that will unavoidably off-gas at some point, the powder-coated finish exterior guarantees no toxin will be released out. As an added bonus point, Blueair Classic 605 is also eco-friendly with 100% recyclable parts.

Moving on to controls and usability, other than using your smartphone as a remote control, the top touch buttons panel is big and clear where you can control the speed, connect via Wi-Fi and filter status update. Each buttons have LED icon that will update to current mode the air purifier is in. For example, the fan speed button will display complete grey if there is no power source, outer circle blue with all bars are grey when power cable is plugged in, 1 blue bar at minimum speed, 2 blue bars at medium speed and 3 blue bars at maximum speed. Same goes with Wi-Fi button where complete grey if there is no Wi-Fi, blinking if is ready to connect and blue if is Wi-Fi connected. As for the filter button, color will be shown grey + blue when no replacement filter is currently required and change to orange when filter is required replacing (hold the button for 5 seconds to reset the status).

Rounding up notable features include a 3-stage filtration with 3 speed, HEPASilent Technology, smartphone control (see below), easy one minute filter replacement with no screws, hooks or tools needed, built-in casters, filter replacement indicator, zero ozone emission (reduce ozone in fact), CARB certified, Energy Star rated and 5 years warranty.

Blueair Friend app

Blueair 605
is Wi-Fi supported thus you could fully utilize the excellent Blueair Friend app via the comfort of your bed. By adding your air purifier into the Blueair Friend app list, what you can do beyond the physical buttons is remotely adjusting the 3 airflow speed, LED display intensity, timer, activate child lock, night mode and finally schedule speed/ LED at specific hours and days. You could also access real time outdoor air quality data in most major urban areas and few other miscellaneous logs. For “I” series models that comes with built-in sensors or the added optional Blueair Aware monitor, you could enable Auto mode to let the air purifier change speed autonomously, monitor and keep track room air quality based on your various indoor activities.

Blueair 605 airflow, speed, and CADR

Blueair 605 coverage
Purifying coverage
775 sq. ft. (72 m2)
Blueair 605 airflow speed
Airflow speed
150 - 650 cfm (255 - 1104 m3/h)
Blueair 605 fanspeed
With multiple air inlet coming in from bottom, back and sides of Blueair 605 has the best 150 - 650 cfm airflow delivery rate return and 775 sq. ft. purifying coverage for its Classic series. Perfect for large room size like living hall, lounge or kitchen. Utilizing the same fanspeed setup, there is plenty of power spread out across the 3 speed that you will not feel underpower at all. At 5 air charges a hour, clean air will be swiftly distributed across the room via the top and side air purifier outlet.
Blueair 605 dust CADR
500 cfm (849 m3/h)
Blueair 605 pollen CADR
Pollen CADR
640 cfm (1087 m3/h)
Blueair 605 smoke CADR
Smoke CADR
500 cfm (849 m3/h)
CADR is equally impressive (above 500 point) and again best in its Classic series. dust CADR stands at 500 cfm, pollen CADR at 640 cfm and smoke CADR at 500 cfm. Works best against seasonal allergies and hyperallergic or asthmatic person. To see how well Blueair 605's CADR performs, feel free to compare with other classic series models via the comparison link above.

What’s inside count

Blueair 605 HEPA filter
Blueair Classic 500/600 Series Particle Filter
6 - 12 months
Blueair 605 carbon filter
Blueair Classic 500/600 Series SmokeStop Filter
6 - 12 months
Blueair 605 technologies
HEPASilent Technology
^ Blueair 605 filters/ technologies/ lifespan
Like all Blueair Classic air purifier, Blueair 605 is powered by HEPASilent Technology that combines the effort between electrostatic and mechanical filtration resulting an effective rate of 99.97% of airborne particles capturing down to 0.1 micron in size. When airborne pollutants flown inside the air purifier via the motor fan, the encapsulated particle-charging chamber or simply ionizer will electrically charge the pollutants before passing through to the filter media. Fine airborne pollutants like mold, pollen and bacteria that are charged would adhere more to the particle filter therefore the filter will have an easy task in capturing them. Same goes with the SmokeStop Active Carbon filter that have a better efficiency rate in dealing with charged tobacco smoke, VOCs, odor and other smoke/ gas based particles. All Blueair filters are ultrasonically bonded and made with waterproof, natural antibacterial polypropylene fibers instead of using chemical-based bacteriostats/ mold inhibitors to prevent bacteria and mold growth. The low dense, gradient structure filter design also prevent particle of all sizes from re-releasing out even if the filter is under heavy load. Last but not least, Blueair Classic 605 also help reduce its surrounding ozone level as the air released from the purifier has less ozone concentration than the level in the air.

Covered against

Blueair 605 VS Dust



Blueair 605 VS Pollen



Blueair 605 VS Hair

Hair/ Pet hair


Blueair 605 VS Dust mite

Dust mites


Blueair 605 VS Mold/ Mildew

Mold/ Mildew


Blueair 605 VS Pet dander

Pet dander


Blueair 605 VS Virus/ Germ

Virus/ Germ


Blueair 605 VS Tobacco smoke

Tobacco smoke


Blueair 605 VS Chemical



Blueair 605 VS VOCs



Blueair 605 VS Smoke/ Gas

Smoke/ Gas


Blueair 605 VS Odor



Unquestionably Blueair 605 3-stage filtration is highly effective when pit against household and micron-size contaminants, allergens, microorganisms. Driven by high airflow intake/ outtake and wide purifying coverage, Blueair 605 incorporated filtration is fantastic in removing hair, dust, dust mites, pollen, mold, spores, mildew, fungi, germs and pet dander.  On coping with odors and smokes, Blueair 605 is also fantastic against chemicals, cooking odors, detegent odors, VOCs, tobacco smokes, cigarette, radon and ammonia.

Keep it down

Blueair 605 noise level
Noise level
32 - 62 dB(A)
Blueair 605 power consumption
Power consumption
15 - 100 W
For the airflow performance you get, 32 - 62 dB(A) noise level is actually lower than similar range model as the low density filter allow air to flow at a lower pressure. That said, compare with other models, you can hardly tell the differences in real life situation. Noise is whisper-quiet at low speed, normal at medium speed and clearly audible moving up the notch. Thanks to the advanced fan setup, 15 - 100 W power consumption is very reasonable again given the airflow efficiency return. Without auto mode as standard, you have to manually keep the speed at lower tier to help reduce the electricity bill.

At what cost

Blueair 605 MRSP/ RSP
+- 749.99
Blueair 605 annual filter replacement cost
Annual Filter Cost
+- 230 - 460
^ Replacement filters/ estimated cost
A premium air purifier deserve a premium calling price, although I'm sure not everyone can take it. Blueair 605 premium price tag is not the biggest stumble block, the short filter lifespan and high annual filter replacement cost is what going to cost you in long run. Mind you for the additional auto mode feature, you will need to purchase an additional Blueair Aware monitor that would push the price up further. The best thing you can do is take advantage of the Blueair Filter Club loyalty program that reduces the cost slightly (free shipping). So if you can't cough out that much, consider the cheaper alternative below.

Blueair 605 VS the challengers

Blueair 405

A smaller, cheaper alternative with identical specification and performance. Perfect choice if you need a quality air purifier without the high airflow performance.
Airmega 400S

Airmega 400S

Another reputable air purifier that has similar built quality and is Wi-Fi ready. The cheaper price clearly reflected on the lack of ionizer and filtration depth as Blueair 605.

Final thoughts on Blueair 605

Bring to a conclusion, we are fulfilled with Blueair 605 functionality coupled with the air flow delivery rate. Compare to the advantages/disadvantages, you can definitely see there are more merits on the air purifier. Merging the two options above, we recommend Blueair Classic 605 to all.

Verdicts and ratings

Build quality
Airflow delivery
Particle Filtration
Smoke Filtration
Blueair Classic 605

Frequently Asked Questions FAQ


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