PUREBURG Replacement Smokestop Filter Compatible with Blueair 500/600 Classic 503 505 603 650E 550E 501 510 555EB 601 605 580i 680i Air Purifiers,H13 HEPA 3-Stage Filtration Activated Carbon

Have been using these air filters for about 5 year on my Blueair 500 system. Solid construction and good airflow (not restricted). Have tried couple other aftermarket filters in the past, but they were very restrictive. Save some money over the Blueair mfg stock.

I have a lung condition that requires I have this kind of filter. Works great and not have to pay the full price of the authentic filters. Highly recommend

High quality replacement filter that costs far less than OEM. Highly recommended

It's hard to tell how well these filters work. Hopefully they are filtering close or near to what the original filters did. However, the reason I don't give this filter a higher score... I agree with what others are saying about the reduced air flow. It seems the air is more restricted. I have always ran my Blue Air 580i on medium speed because high speed is too loud. But with these filters, it seems more like the airflow is like having it on low speed when I have it on medium. Of course I can run it on the high speed but then I have to deal with the noise.

We live in an industrial part of East Oakland, the air here isn't great. I have 2 BlueAir 601 units that help tremendously. The Pureburg filters have been great... zero issues, similar construction to OEM and no noticeable difference in performance at a lower price. I keep coming back.

Fits my Bluair 601 perfectly Good air flow Good price Will continue to buy Recommended

The price is not cheap!

Great filter for Blueair 6000

Seems to work better then the original bluair filters. And it's much cheaper

They block most of the air flow, definitely not buying again.

Arrived on time.

Buy it it works

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