germguardian Guardian Technologies FLT41002PK FLT4100 HEPA Replacement Filter E for AC4100, AC4100CA AC4150BL, AC4150PCA, 2 pack, Black Air Purifier

The charcoal fabric filter could be more sturdy, after a few washes it loses its shape & integrity.

This filter definitely works. From dust, dander, smoke, particles in the air etc. There is no match for this unit. I would recommend a different unit if you are using this for your sleep schedule; near your bed. This is not the most quiet machine ever but it is not super loud. Right in the middle. I would consider this unit to be a Post Malone of the air scrubber world.

Not much to say about this. It goes with the air purifier I am using and it fits perfectly and does the job! I was impressed at how much dust and crap it filters out of the air, and am very thankful for it as my workplace is the worst when it comes to dust. Great product. Will be buying more as long as my air purifier works!

Used to be much better quality- the top and bottom of the filter used to have some foam padding for a snug tight fit. Now the fit doesnt seem air tight. Also the pre-filter is shedding black debris everywhere. Its so thin and poorly made. When you put your hand on it youre fingers are covered with black debris? Was it always like this?

It works fine super easy to install and I can tell the difference in the air with this new filter.

Works great

These are great. I have pets an allergic to them an these are great. I have 2 sizes of these air purifiers an they are the best. The filter I like. Bought off brand these are best!!!

Perfect for ease and does the job

Easy to change! Good price. Refill also has the black filter, it is on the underside. Below is the one that came with mine initially and the new filter to the left.

Work well