Customer reviews from www.blueair.com
Blueair - ComfortPure 3-in-1 HEPASilent T20i Air Purifier Large: Heat + Cool + Purify - Gray
Average customer rating
4.7 out of 5
4.7
(119 Reviews)
Open Ratings Snapshot
Rating breakdown 119 reviews
5 Stars
97
4 Stars
17
3 Stars
1
2 Stars
0
1 Star
4
83%of customers recommend this product. 
(
19 out of 23
)
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Customer Reviews for Blueair - ComfortPure 3-in-1 HEPASilent T20i Air Purifier Large: Heat + Cool + Purify - Gray
Customer Rating
5 out of 5
5
ComfortPure 3-in-1 air purifier T20i
on July 29, 2026
Posted by: Eileen G.
from US, United States
My Blueair purifier is perfect 👌 for my problem. It not only purifies but can cool and heat spaces when needed.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
4 out of 5
4
Awesome
on July 24, 2026
Posted by: Jesus B.
from US, United States
Purchased the smaller version for my sons nursery room and the bigger one for the living room and they work well. The fan is nice and the purifier mode is noticeably making a difference in my home. Haven’t used the heat mode since it’s summer but have tested it and it seems like it will work perfect for winter time. Overall great purchase. Happy with my blue air purifiers !
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
5 out of 5
5
Great Company
on July 6, 2026
Posted by: Jon B.
from US, United States
T20i had a noise issue Tech Dept evaluated the noise via video sent. The replacement was sent with old unit returned ,no problems. I ended up buying 2 more purifiers sc9 for bedroom with alarm they work great .I know if there was a problem this company will uphold and stand behind warranty. Jon (5 stars)
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
4 out of 5
4
Worth the Price
on April 4, 2026
Posted by: BRENT Y.
from US, United States
Nice unit but it needs to cool better, but would i buy again. Yes
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
5 out of 5
5
I love this thing!
on March 16, 2026
Posted by: Kiara W.
from US, United States
I purchased this unit because it offers heating, cooling, and air filtration in one device, and I really love it. Some reviews mentioned that it makes noise when it oscillates, but I haven’t noticed that issue. It does produce a very low sound, but it’s simply the air filter running.I actually don’t mind the sound at all. At this point it feels more like white noise in the background. I’m very glad I decided to purchase it.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
5 out of 5
5
Works great, my second purchase for larger room!
on December 22, 2025
Posted by: ChrgrGrl
from US, United States
Works as expected.Wish BlueAir offered a floor stand for this model?!Would make cleaning the floor easier. No need to move the unit around. Thank you.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
3 out of 5
3
Modified Zen
on December 8, 2025
Posted by: e.l. w.
from US, United States
I've moved apartments since purchasing this for a larger open space. Yet I've managed to find a nook where it isn't overpowering the room. I use a rock to secure curtains stay away from it.With a cat who likes to perch herself on top of everything - having this air purifier oscillate keeps her from using it as a scratching post. Unfortunately (as others have written) it makes a lot of noise pollution. The screeching sound is just as bad for a zen household as any other pollutant.The heater is perfect to warm up a brisk morning or grey afternoon in 3 seconds. Helps keep from fiddling with apartment heater settings too.And being able to swipe clean the back filter is amazing... minimizing larger filter changes.Minimizing the oscillation screech would give this model a perfect ambience score.
Written by a customer while visiting www.blueair.com
Customer Rating
4 out of 5
4
Its a nice product to have at home
on November 11, 2025
Posted by: Leven
Gender:Male
It’s a convenient all-in-one appliance to keep in the living room for the entire year. Whenever I see the PM2.5 level drop to zero, I know my kids are breathing clean air in a clean living room. The fan/ filtering function is good to keep the room with fresh air and cool. Don’t expect the heater function to instantly warm up your room like a traditional heater, but once you turn it on, the room temperature will rise to a comfortable level within 10-15 minutes. I understand that many people complain about heaters lacking timer settings, but I can live without it. However, it’s definitely a good feature to have. Last not least, the large size is really big, make sure your room is also big enough to place it.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
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