Blueair Pure Purifying fan reviews – can you wash pre-filter?


Blueair Pure Purifying fan has minimalist design that uses a single button to turn the fan on/off, cycle through 3-speed settings and alerts when it’s time to replace the filter. The only purifying fan with customizable pre-filters; Fabric pre-filters are washable and available in 5 colors; Diva Blue and Dark Shadow included. Blueair Pure Purifying fan reviews cover details.

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Pros & Cons


  • Removes 99% of pollutants of 2.8 microns and higher
  • Delivers a gentle stream of clean, fresh air
  • Comes with colored and washable pre-filters
  • One button design, filter replacement indicator
  • Quiet and calming noise
  • Completely ozone-free


  • Not suitable for large spaces
  • Lacks an activated carbon filter
  • No tilt or oscillation feature

Specifications – Blueair Pure Purifying fan

  • Filtration: Washable fabric pre-filter and replaceable particle filter
  • Particle filter type: Non-HEPA, pleated polyester fiber (PET)
  • Filter life: 6 months
  • Filter replacement indicator: Yes
  • Maximum CADR: 182 cubic feet per minute (cfm) for pollen
  • Coverage: 270 square feet with 5 air exchange per hour (ACH)
  • Sensors: N/A
  • Number of manual fan speed: 3
  • Automatic mode: N/A
  • Size: 14.9″H x 13″W x 11″D
  • Device weight: 11.6 lbs
  • Noise level: 31 – 56 dB(A)
  • Rated Power: 61 Watt
  • Voltage: 110 – 120 V AC 60 Hz


The air intensity coming out of the fan cannot compete with a standalone fan. Yet, the airflow is strong enough to make a difference in air quality. As per tests from AHAM, the Blueair fan can remove 99% of dust and allergens from a volume of 1,008 cubic feet. in 20 minutes. Expect this Blueair fan to cater to around 200 sq.ft. area with an ACH = 2.

Annual cost

Annual Filter Replacement: ~ $49, based on 6-months usage per filter (check the current filter price Blueair).
Monthly Energy Consumption: ~ $4 (based on 12 cents per kWh and 18 hours use on the top speed per day). Use our Energy Usage Calculator to find out the bill based on your usage and the local energy rate.

Blueair Pure Purifying fan reviews


The air purifier fan comes in a box-like/cube design. White in color, it features a carry handle on the top. This makes it easy to move from room to room. You can move the air purifier from the floor to a table.  Its white, cube-like design measures W33 x D28 x H380cm and sits on the floor on four attractive rubber feet that match the colour of the brown synthetic leather handle on top. This, and the geometric pattern on the front grille, give it a classy look.


The filtration system includes a fabric pre-filter and a pleated particle filter. The pre-filter helps to trap and remove larger particles such as dust, pet dander, pet hair, and lint. After the pre-filter, you have the particle filter.

What you need to know is that the pre-filter is at the back of the device while the outlet is at the front. So, as the unfiltered air passes through the pre-filter, pollutants get trapped and outcomes clean, fresh air that also cools you.

The particle filter is made of non-woven gradient PET fiber, which is also recyclable.

When to replace filter?

Among all the minimalism, some things are unavoidable like replacing your filters. The need for filter replacement has no fixed timeline. There’s an LED indicator to alert you of the impending filter change. Post five months of operation the indicator LED becomes yellow. After another 1 month, it turns Red which means its time to change the main filter immediately.

After changing the filter, you need to press and hold the LED button for 10 seconds.

The pre-filter as you is washable. You can even spin it in a washing machine for a thorough cleaning. However, do not wash it in hot water.


 You have a single touch-sensitive circle on the top that cycles through three different fan speeds (and therefore purification and noise levels). It’s simple and intuitive. Tap it to cycle the power from off to 1, 2 or 3. Subtle lights indicate power level and they dim after 7 seconds, saving energy and not disturbing sleep if this is located in a bedroom.

There is no companion app and or air-quality monitoring with this model, however. You simply pick a speed and let it get to work, just as you would with an ordinary fan.

CADR Rating

The CADR rating of the device is 182 cfm for pollen. Measuring 14.9 by 13 by 11 inches, this air purifier fan can clean a 270 square feet room, five times an hour. As such, it’s perfect for your living room, bedroom, office, home office, and nursery.


*The room size calculation is based on an ideal situation. For best practice, consider the size of the room a little less than the calculated value.

ConditionRequired minimum Air Changes per Hour (ACH)Suitable Room Size (8 ft ceiling)The time it takes to clean the air in the room
Normal2680 sq ft30 min
Allergies and/or asthma5270 sq ft12 min
Smoke or highly contamination8170 sq ft8 min

If you have higher ceilings, then use our Air Changes per Hour Calculator to calculate the suitable room size.


Besides the minimalist design and cooling fan, this air purifier fan is quiet at the lowest setting. According to the manufacturer, the device has three fan settings. At the lowest setting, it produces 31 dB(A).

What you need to know is that this is lower than the average home noise at 40 dB. At the highest fan setting, the device can produce 56 dB(A). A normal conversation or background music is 60 dB.

How to operate Blueair Pure Purifying fan?

The fan is ready to use straight out of the box and its controls are very simple and intuitive. The big white plastic circle on the top is touch sensitive. Tap it to cycle the power from off to 1, 2 or 3. Subtle lights indicate power level. The lights dim to 10 per cent after seven seconds, so they don’t disturb you in the night. It doesn’t oscillate but the air is dispersed across a wide angle of 90 degrees.

Blueair Pure Purifying fan customer reviews

wildfire smoke relief

Living in the Portland metro area during this time of hazardous air warnings without air conditioning or central heating in our 1970’s home we needed something to keep the air inside as clear as possible. The bedroom has a Blueair 211 and that kept one room liveable but we needed additional help for the rest of the house. Settled on the PURE Fan and couldn’t be more satisfied. Within 30 minutes of setting it up (plugging it in !) the air was noticeably cleaner and our eyes no longer felt dry and irritated and it was the first time in nearly a week that it felt safe to take a deep breath. Love the retro look and the ease of settings – as someone else already remarked – this is more of an air circulator/air cleaner and not your standard box fan (don’t expect gale force winds from this unit). That being said it is doing the job for us and we couldn’t be more satisfied. Thank you Blueair.

By BEST BUY Reviewer

Alternate of Blueair Pure Purifying fan

Dyson Pure Hot + Cool

This larger, pricier Dyson is the only model here that acts as a fan heater as well as a fan. Its ‘air multiplier’ blows filtered air out of a slit around a large oval hoop, which in turn pulls more unfiltered air through the middle. Its display and app monitor air quality and temperature. Activated carbon and glass HEPA filter.

Dyson Pure Cool Me

Most Dyson fans use an ‘air multiplier’ to increase the amount of air they throw at you. Clever, but it means only some of that air is filtered. This smaller model, however, filters all air through an activated-carbon and glass HEPA filter. It’s good for creating a purified breeze at your bedside or desk.

Blueair Blue Pure 411

An air filter but not a fan, this compact machine looks good and can clean the air in a 15m² room completely five times an hour using mechanical and electrostatic filtration. It catches airborne particles including dust, pollen, smoke, viruses and bacteria, while active carbon removes odours.

Editor’s recommendations

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