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

I first learned of this system when our daughter moved back home during her pregnancy and the first few months of our grandsons life. We really liked how well it worked and so got one for upstairs and one for downstairs. Changing these filters is super easy, and with the subscribe and save option you never have to worry about forgetting to. Really makes a difference in our home and we are very pleased with the results.

Great product

Easy to install! Price is perfect! As simple as that!

You can reorder easily and you can wash the black filter and not have to replace the entire filter so much.

This filter assembly fit the air purifier perfect. Carbon filter is normal thickness. Product is as described

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

The whole air purifier is great. As others have stated, it seems as if they have gone cheap on the carbon filter. You can buy a bunch of carbon filters from anyone, and just double up. After that, it is still a good price

I found the genuine filter at this time to only be $1 more expensive than the off brands. Decided to go with a genuine. Came quickly an came with the charcoal pre-filter, which I had a hard time figuring out if it did on some listings. It did fit a little more snug than the original one that came with the air purifier. This is my first replacement so Im not sure if thats common or just a mishap. Either way it still works fine and I plan to keep vacuuming the pre-filter every 2 weeks.

Easy to install, not terribly expensive and does what it is supposed to do. The amount of dust it catches is amazing.

I love my air purifier but having cats and living in New England means being ready for dander and pollen. I noticed a burning smells after several months of the original filter. The smell went away after replacing it with this one. An air purifier is one of the best things you can add to your bedroom.