Blueair Classic 505 Quick Review

One par below Classic 605, the amazing Blueair Classic 505 is setup with high-performance airflow delivery rate and comprehensive purifying coverage. In typical Blueair fashion, this air purifier would be splendid for people with asthmatic problems thus requires Blueair Classic 505 to work on a day after day basis. Depending on the air flow delivery rate, applicable radius, noise level and electricity usage, can Blueair Classic 505 slot well between Classic 405 and 605 on price and performance?
± 799.99 p
     Annual filter ^    
± 230 - 460 p
 Online price*
** MRSP (Manufacturer's Suggested Retail Price)/ RSP (Retail selling price) is provided by cleanairprice.com. Accurate at the time of posting.
^ Annual filter cost is calculated based on filter price and 12 hours of usage. Pricing could vary depending on air quality, usage frequency, and speed.

Blueair 505 Specification

ProductBlueair 505
20 x 26 x 13 in
(50.8 x 66 x 33 cm)
Weight35 lb (15.9 kg)
Coverage (up to)700 sq. ft. (65 m2)
Airflow speed130 - 520 cfm (221 - 883 m3/h)
Dust free (CADR)400 cfm (680 m3/h)
Pollen free (CADR)450 cfm (765 m3/h)
Smoke free (CADR)450 cfm (765 m3/h)
- Lifespan
- Replacement cost ($)
Large Particle Pre-filter
5 years
HEPA filter
- Lifespan
- Replacement cost ($)
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 usage level15 - 100 W
Timer/ SchedulerVia App
Auto mode
Air qualityAQ indicator
Filter change indicator
More color options
Wi-Fi/ BTBluetooth
Remote control
Child lock
Warranty5 years
Email/ Phone support

Key features

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


  • One of the strongest airflow and widest purifying coverage in Classic series.
  • Unique HEPASilent Technology that ionize particles so it will be more clingy to filters.
  • Proven and highly effective gradient structured particle/ SmokeStop Filter.
  • Excelleny dust, pollen and smoke CADR return.
  • 100% recyclable galvanized steel body.
  • Wi-Fi easily connects and support either Blueair Friend app or Amazon Alexa.
  • Blueair standard 5 years warranty.


  • Expensive even though it is discontinued.
  • Very costly annual filter replacement.
  • Bulky body.
  • No dedicated pre-filter to filter out first layer dust/ hair while protecting the particle filter.
  • No air sensors/ Auto mode by default (requires addon Blueair Aware monitor).

Just slightly below Blueair 605, Blueair Classic 505 is capable of competing in this market with conventional Blueair look with fantastic fitting. Designed and engineered with reliability in mind, high quality controls are in regular placement that yield responsive feedback. Blueair Classic 505 exterior is neatly built that barely has any gaps or lopsided parts. For example, owner could carry on utilizing Blueair Classic 505 without have to worry it would wear out.

Airflow performance and purifying coverage

Blueair Classic 505 HEPASilent technology is ideal if you have spacious room size, the applicable radius for is as expected wide and comprehensive. Put differently, Blueair Classic 505 is fully recommended for locations like living room, kitchen or master bedroom. Continuing with the purifying effectiveness and CADR, Blueair Classic 505 has tons of purifying capacity that nearby air-borne particles for example dust, mildew, pet dander, mold and pollen would all be easily taken in and contained.

Noise level and power consumption

Blueair Classic 505 noise level is considerably subdue mainly because of the wonderfully sealed exterior. More or less zero noise at 1 speed, soft noise at 2 speed and less than normal conversation noise at 3 speed. You can anticipate reasonable level of noise level from Blueair Classic 505 put next with other home appliances.Proceeding with the power consumption, Blueair Classic 505 is a modest daily air purifier that you will only see the massive difference in electricity bill when the air purifier is operated in maximum acceleration. Power usage is comparatively low across all fan speed unless the air purifier is running at max total capacity 24 hours a day. Put next with common household appliances, Blueair Classic 505 overall electricity usage is without doubt lower within similar period of usage.

noise graph

Final thoughts on Blueair Classic 505

Rounding up, Blueair Classic 505 is what a incredible air purifier should be. In comparison with the strong points/weak points, it is well slotted between the Classic 405 and 605. With the 2 highlights joined, we completely recommend Blueair Classic 505 to all that keen in this air purifier.

At what cost

Blueair 505 MRSP/ RSP
+- 799.99
Blueair 505 annual filter replacement cost
Annual Filter Cost
+- 230 - 460
^ Replacement filters/ estimated cost
While Blueair 505 is far from cheap given the lack of modern features, the filter is and should be the main reason to go for this air purifier. As most air purifiers would last you for at least a couple of years, the estimated 5 years filter lifespan would greatly bring down the filter replacement cost and annual mandatory effort in replacing the filter. One little downside to Blueair 505 is replacing the filter is not as straightforward as a most air purifier with front pop-out cover. You would need to unscrew and pop out the cover, remove the exhausted filter and replace it with the new filter before closing it up. Check out Amazon website for more great deals on Blueair 505 filter replacement price.

Blueair 505 VS the challengers

Austin Air Babys Breath

Austin Air Babys Breath

Exact replica to Allergy Machine Jr with the exception of two unique bright colors (pink and blue).

Austin Air Allergy Machine

The non-junior version that is beef up on airflow, purifying coverage and filtration strength.

Austin Air HealthMate Jr HM200

Standard version with a different set of an activated carbon filter that is as effective against gases and odors.

Verdicts and ratings

Build quality
Particle Filtration
Smoke Filtration
Blueair Classic 505

Max Fernandez

A loving father and a dedicated reviewer for airfuji.com with more than 1000 air purifiers under his belt. Max Fernandez is also one of the million patients currently suffering from asthma. Feel free to nudge him if you have any questions.

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