REVIEW – Every year during fire season the sky gets hazy and the air gets a little thicker outside. I’ve seen a number of reports of the dangers of air pollution on our health, so I’ve been looking for a new air filter to add to my home. The Burtran A31 Nano-Oxy HEPA 14 Air Purifier came up as an option to check out and it touts some interesting features, so I decided to give it a try and I’ve been running it for about four weeks now, so read on to see how it has held up!
⬇︎ Jump to summary (pros/cons)
Price: $399.99
Where to buy: Amazon
What is it?
The Burtran A31 Nano-Oxy HEPA 14 Air Purifier is a high efficiency air filter that is constantly measuring air quality and adjusting air flow. It covers up to 1360 square feet.
What’s included?
- Air Purifier
- Included air filters
- Power cord
- User Guide
Tech specs
- Filter Type: HEPA
- Floor Area: 1360 Square Feet
- Noise Level: 31 dB
- Particle Retention Size: 0.1 Micron
- Wattage: 55 watts
- Item Dimensions: 7.2″D x 18.9″W x 19.4″H
- Weight: 17.5 Pounds
Design and features
The Burtran A31 Nano-Oxy HEPA 14 Air Purifier has an in-obtrusive design and several very nice features built in. The gray and white design blends in very well and it doesn’t stick out. I think one of the things I like the most is the layered filter design, which makes it so you can vacuum off the larger outer filter and extend the life of the filters, especially since replacing the HEPA filter is not inexpensive. There are also physical controls for all of the functions in addition to WiFi controls through the SmartLife app.
The filter has a digital indicator on the side that tells you the negative Oxygen ion concentration and the PM2.5 measure as well. PM2.5 is an indicator of particulate matter with a diameter of 2.5 micrometers or less. (I had to look that one up). Negative oxygen ions are associated by the manufacturer with improved health and a refreshing, forest-like atmosphere. I’m a tad skeptical of that claim, but at the very least I’m grateful for cleaner air.
One nice addition, I thought, are the hidden handles on the side that you can use to pick it up. Just a small design feature, but very thoughtful.
Layered air filters:
Assembly, Installation
Out of the box, this air purifier only requires that you remove the plastic covers on the different air filter covers. The front panel easily pops off and you just take each layer off in sequence. Besides this, there is no additional assembly required. The HEPA filter is shown below.
There is also an app, SmartLife, that you can install. It allows you basic access to the purifier, some current data, and controls. From afar you can see the status of the air quality and change modes or turn the fan up or down. There isn’t a schedule function or anything more complex than the basic controls.
Performance
It’s kind of hard to judge the performance of an air purifier as it can be a very subjective thing. Most of the time I don’t stop and think about how fresh the air I’m breathing is unless it is noticeably bad. The external indicators are nice, though. In addition to the digital display, there is a subtle light bar on the button controls that indicates air quality with a scale of blue / orange / red for quality from good to bad. I have to admit that there were times that the the indicators shifted colors and I could not tell why. The PM2.5 numbers were fine and the negative O2 ion numbers looked fine, so I don’t know what was happening. It happened infrequently, so perhaps it was a very brief spike or something else was happening.
I did find one thing in the house that understandably spiked the air particulate quality very quickly, dry shampoo. Someone used some in the other room and not too long later the air purifier picked it up and the numbers quickly spiked.
Overall, this is an almost silent air purifier. When the particulate matter spikes and the fan really kicks up it does crank up and I measured it at around 47 db. Still pretty quiet.
Final thoughts
All in all, this is a great air purifier. The multiple layers of air filtering are a very nice feature and I really like the HEPA 14 quality. The touted benefits of the negative oxygen ions seems a bit overblown and overhyped, but there doesn’t seem to be a down side to it. It’s quiet and I really appreciate having the additional protection, especially during this time of year with wildfires and the upcoming flu and cold season. The price is pretty high for an air purifier, though, and if you go with the name brand replacement air filters you’re paying a pretty high price on an annual basis. Overall, I think it’s a great air purifier and designed well.
What I like about the Burtran A31 Nano-Oxyâ„¢ HEPA 14 Air Purifier
- Incredibly quiet air purifier. You’ll forget it’s there
- Layered air filtration to extend the duration of the HEPA filter
- Well built and designed
- Directional air output can be adjusted to optimize to the room
What needs to be improved?
- The app functionality is pretty basic. Would be nice to see some better stats over time and a schedule function
- Price is pretty steep
Price: $399.99
Where to buy: Amazon
Source: The sample of this product was provided for free by Burtran. Burtran did not have a final say on the review and did not preview the review before it was published.
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$263.43 (as of October 23, 2025 17:32 GMT -04:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
