BLUEAIRBlue Pure 411 Auto, 411, 411+ Genuine Replacement Filter, Particle and Activated Carbon, fits Blue Pure 411 Auto, 411 and 411+ Air Purifiers

These work quite well and last for several months which is good since we seem to get a lot of dust in the house.

Works

This was a lot easier to install than I had thought. A bit on the high side, but I need it. I love the air quality we get from the air filter. And I guess the price isn't that bad. I only have to order this once every 6-8 months.

Working good. I have been using this filter 3years.

I could write a long writeup about this product, but it would be just repeating facts in different ways, over and over again.So here it is. This is a very simple and effective filter that is easy to install and use. Not really sure about the amount of particular it filters out, as I do not have such a system in place to measure air purity. The room it is placed in (the child's room) seems ... peaceful.

The outer cloth filter (not this product) catches dust. This inner paper filter captures pollen and particulate matter. It seems to do the job, because it's dark when I change it every six months.It's very easy to change. It takes only a few minutes to replace. It fits well on the filter housing. The air flow seems to be better than the off-brand filters.Quality of manufacture is good. I have used the Chinese-made, off-brand filters, and those feel very cheap. Not sure if they work as well at capturing particles, and the air flow doesn't seem as good.

These are excellent for filtering indoor air, covers a room very well and removes a lot of dust.

My blueair is going strong after six years and these filters are on auto ship from Amazon. I love them. And the air purifier. These are the only filters I’ve ever tried so I have no comparison, but I have no complaints either.