






๐ฌ๏ธ Breathe Brilliantly, Live Effortlessly.
The BLUEAIR DustMagnet 5240i is a premium tabletop air purifier engineered for small to medium rooms, delivering rapid and silent air cleaning with patented DustMagnet and HEPASilentโข technologies. It removes 99.99% of allergens, dust, smoke, pet dander, and odors down to 0.1 microns, while smart app controls and Alexa compatibility keep you connected to your air quality in real time. Award-winning design meets cutting-edge filtration for a healthier, fresher home or office environment.
























| ASIN | B08GDVF5QH |
| Best Sellers Rank | #470,127 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #425 in HEPA Filter Air Purifiers |
| Brand | BLUEAIR |
| Brand Name | BLUEAIR |
| Color | Grey |
| Control Method | App, Touch, Voice |
| Controller Type | Amazon Alexa |
| Customer Reviews | 4.6 out of 5 stars 554 Reviews |
| Filter Class | Pre-Filter |
| Filter Type | Pre-Filter |
| Floor Area | 48 Square Meters |
| Included Components | unit |
| Item Dimensions D x W x H | 9.1"D x 9.1"W x 20.5"H |
| Item Type Name | Air Purifier |
| Item Weight | 4.5 Kilograms |
| Manufacturer | Blueair |
| Model Number | 5240i |
| Noise Level | 45 Decibels |
| Part Number | 5240i |
| Particle Retention Size | 0.1 Micron |
| Power Source | Corded Electric |
| Product Dimensions | 9.1"D x 9.1"W x 20.5"H |
| Special Features | Programmable |
| Specification Met | AHAM Certified, CARB Certified, Energy Star Certified |
| UPC | 689122015316 689122015354 |
| Unit Count | 1.0 Count |
| Wattage | 5 watts |
S**H
Dust Destroyer with a Hyper-Responsive Sensor!
The Only Air Purifier I'll Ever BuyโA Dust Destroyer with a Hyper-Responsive Sensor! My apartment was a dust magnet. Despite having an air purifier running in the bedroom and regularly swapping out the central HVAC filter every month, dust would settle so quickly that surfaces needed dusting by midweek. It was an exhausting, never-ending battle. Since installing this Blueair unit, my dusting frequency has plummeted from every few days to nearly once every two weeks. The unit cleans the ambient air so thoroughly that the particulate matter simply isn't there to settle anymore. This massive reduction in indoor dust alone made it worth every penny. While the long-term results are incredible, the real fun (and proof of performance) is watching the air quality sensor in action. This sensor is not sluggish or reactiveโit is instantaneous and hyper-responsive, proving how quickly our indoor air quality can change. It's like having a little clean-air sentinel that instantly detects invisible threats. Iโm consistently impressed by its ability to pick up: * Cooking Incidents: Searing a steak, or using the air fryer immediately triggers the sensor, which jumps to the red warning level and ramps up the fan speed to clear the air before the smell even reaches the next room. * Aerosols and Vaping: Spraying deodorant, hairspray, or using an aerosol cleaning product causes an instant spike and response. Similarly, it right away picks up if anyone is vaping, instantly activating to neutralize the particles. * Other Disturbances: Even something as simple as using a high-powered blow dryer, which kicks up hidden dust and heated particles, is enough to get this machine working overtime. The combination of the sensor's hair-trigger responsiveness and the long-term efficiency in removing dust makes this air purifier an absolutely essential home appliance. It doesn't just manage air pollution; it aggressively eradicates it. If you want superior air quality and a demonstrable reduction in house dust, look no further. Highly, highly recommended for any home, especially apartments!
A**R
I love it so far
My partner and I have wanted to get an air purifier for some time now, our roommates have cats, the previous residents were smokers, and our room gets dusty and very stuffy. I was able to get this Dustmagnet one on sale. I love this little thing so far. Itโs only been a couple days to be fair but Iโve already noticed a difference in the freshness and crispness of the air. My partner and I have it in our bedroom. And I donโt know if it was just older reviews and the product has been improved or Iโm missing somethingโฆ but I have no issues with the sound. I expected it to sound like a fan. It is like realllllly quiet. We have it on auto and I can only hear it if I really pay attention. Even on its full setting it is simply a nice white noise and quieter than a fan in my opinion. On the app you can change the setting, monitor the air quality, and even turn down the LED indicator lights or turn them off entirely. I also very much enjoy its style, it gives me mid century modern vibes which I love. Time will tell about how it works long term but so far Iโm very excited about it. In the video, I go through the different settings and there is little if any background noise. Level 2 and 3 seem to be significantly louder than any of them. I keep mine on auto full time and itโs virtually silent. The picture shows how I have my filters placed, the only thing I would change about this product is to make it super super clear in the instruction manual which direction they go in.
R**Y
Good purchase
So far so good. The night setting is very quiet. Works quickly on kitchen smells from cooking. Overall dust level in house noticeably better after a few weeks of use (we have two cats). Bought another one!
J**A
Perfect for a small bedroom
Great little bedroom air purifier definitely works well for a small bedroom maybe about 400 ft.ยฒ or up to 500 ft.ยฒ. Nothing larger definitely works well and picks up any kitchen smoke or any air quality very fast. The only thing I would say is the actual filters are about $50 I think and I think itโs a little too small. I think an air purifier should be able to pull in more air to clean it more efficiently.
M**N
Not what I expected
This works well I believe and I can tell it is working, but it seems to mainly grab smaller particles. My parents live in a "dusty" area so I had purchased a larger air purifier (Honeywell) for them and it was great on the dust, but also pet hair from their dogs. Because of this I decided to buy a purifier rated for my home office size because of my cats, but also because I am starting to develop allergies. It isn't powerful enough for pet hair unfortunately, but I did buy one for a small room. But there have been some positives for small particles. We have a litter box in a room across from my office (~20ft away). When I fill the box this purifier ramps up to high within a few minutes and the indicator turns red to show a high amount of particles in the air. If spray Febreeze or other home fragrances? Again, this little purifier increases its flow. You can control flow at home or away with the app and even view your local air quality as well the air quality detected in your home. So while it isn't powerful enough to get the larger particles? I think it's doing better than expected for smaller spaces. I'll just keep using my small hand-vac to "catch" those annoying strands of cat hair.
R**K
I love it
Came quickly And as promised ! works great with no noise
D**.
Would purchase again.
As described, so far seems efficient but need to update if dust levels do not improve. Nice looking, quality materials.
R**Y
Probably will stop buying the brand.
Smaller than expected. Cheaply made. Functional. Expensive. Very expensive. Intake through the underside and top each with a prefilter mesh layer. Filters are outrageously overpriced. App is slick but telemetry for data collection for selling my anonymized data is sad. Blue air is a solid recognized reliable brand and as a result they'll take all they can from their consumer base that helped them succeed.
W**D
Good
Good quality
M**R
Good product
Efficieny air cleansing
B**N
Great product!
Absolutely fantastic, really cleans the air, we both enjoy it.
B**S
NOT RATED FOR LARGE ROOM
Contrary to statements on Amazon, manufacturer rates this unit for a 360 sq. ft. room - maximum. This is a "medium" room size rating, not a "large" room size rating.
Trustpilot
1 week ago
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