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

My mom was a very heavy smoker and these filters made visiting her SO much more pleasant. In her small apartment, the smoke hung thick in the air and could really be overwhelming. After starting to use these filters, it was a completely different experience.

Easily went into my air purifier, even though it had a yellow color on the band on outside my original one did not. Really thats about all you need. A filter just has to do its job once installed.

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!!!

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

We got this during the recent Purpleair smoke event from the Canadian Wildfires, which came down & blanketed my city. I went outside the first day not knowing anything was going on & it smelled like a building was on fire We have this small Germ Guardian air purifier, is germ guardian one word? Probably anyway weve had it on/off for the last year or more. Needling to change filters due to the poor air quality & the fact the old filter was likely useless, we got this. Its not like this is a $500 air purifier to begin with so i wasnt expecting a new filter to change that but it works well enough for what it is.

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

Lucky that we have it.. The air quality is bad recently due to vacavile fire

Cleans air well.

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?