Blueair

Classic 403

Blueair Classic 403

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Overall

#366 in

Air Purifiers

according to Reddit Icon Reddit

Sentiment score50% positive
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Top Pros

Top Cons

Last updated: Jun 25, 2026

Reddit Reviews

Reddit Iconwhoorooru
5 months ago

We have been using Blue Air for over a decade and have been happy with them. Have the 411, the pure fan, and our first one the 400. Had a couple fan issues over the years but customer service has been good so far.

6 months ago

Blue air junk? I have been using blue air for a decade and got one for each of my staff conference rooms during the COVID response - none of us got sick and we were in person for over a year. These things have been running for years daily and I’m a fan…

Reddit IconBlowingleaves17
4 months ago

The Classic Blueair models with carbon filters work fabulously, yet I have only seen them priced as low as $300 when on clearance. You can still easily get filters for clearance models, though.

Reddit IconChristopoulos
5 months ago

We use BlueAir Classic, they’re quite effective and are WiFi enabled. The companion app is sometimes frustrating to use but it’s outweighed by the fact that they have an API and can be automated. So I have the purifiers run a different speeds based on the values of our IKEA Vindstyrka.

Reddit Iconlilyhazes
11 months ago

Multi level approach works well. - Decent filter you change more regularly for your HVAC (agree with others that MERV shouldn't be too high) - Clean floors, if you have carpet get a deep carpet cleaning annually - Room air filters. I've had luck with Blue Air. Have one jig one for living room and some small ones for the bedrooms. - Have you tried using regular saline rinses for your nose? I use the powder saline mixes with the plastic applicator from NeilMed, but there are others out there. While my allergies are pretty mild, I haven't needed to take any allergy medicine at all since using these.

Reddit IconAcceptable-Basil4377
11 months ago

It helps a lot. I bought it due to smoke but I’m happy to get rid of cooking and dog smells. I have one from Blueair.

Reddit Iconaccountaholic26
11 months ago

We love our blueair also. Got a dog a month ago and happy to hear from guests our house doesn’t have a dog smell.

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