Filter-Monster Replacement Filter Compatible with Blueair 500/600 Series Particle Filter

I use these with a Blue Air purifier. They work fine. I like the fact that they have a long life because of the price. I do vacuum them from time to time. I don't see much dust or junk on them when I do. I live in a very dusty area. Anything to keep the allergies down. Would recommend and buy again unless I find them for a better price.

Good filters at a nice price point compared to the name-brand versions. They fit with no problems and there are no gaps in the air flow or rattling from poor fitment. I have not noticed any issues in air quality after the change.

I haven’t had these filters long enough to know if they will last as long as the Blue Air brand; these fit, but there is a white “frame” around the top one that the Blue Air brand doesn’t have. I’ve tried to blacken it in with a marker, but haven’t been completely successful. They are 25% cheaper than Blue Air.

The first set I got seemed solid and had little to no smell. The second seemed less durable (black looks more thin, the ridges/folds of the white seem looser or more flimsy) and has a much stronger smell.It seems like running it with the window open is helping to clear the smell and air out the filters.The first filter set trapped a lot of dust and seemed to work very well, I'll update this in a few months if this new set works as good.

We like that these filters fit our unit & work well at a significant savings over the manufacturer’s brand name replacement filters. They arrived promptly during our recent wildfire season and helped make our indoor air more breathable