Blueair Classic 600 Series Replacement Particle Filter (Set of 3)

The Classic 600 itself is great and so are these filters, but when you open the app all 8 of our Classic’s show up with their speed and then seconds later they lose connection and it says they are offline. They are not offline, but there is something wrong with the app that it thinks they are. Our best bet is that it can’t deal with us having two connections to the internet through two providers and thus our IP address changes. A correctly written app does not use IP address to maintain a connection...bad programming for a great HEPA filter!

My granddaughter receives your Blueair and says she loves it. Also, it run 24/7 and they clean it often.

My machine is working great. The apartment I moved onto had an odor even after 2carpet cleaning in a row. Then I remembered new filter! Perfect! Clean smelling air.Thank You BlueAir! I have 500/600series. Just one does the job.

I have had them for many years and they are great. So glad I found them a long time ago.

I've had this air purifier for a really long time. It is quiet and efficient. Worth paying for Blueair filters. The knock-off brand filters do not work as well. I plan to keep the machine for a lot longer, so will only buy OEM filters.