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

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!!!

Works great

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.

The Guardian Technologies GermGuardian Air Purifier Filter fit perfectly in my kids air purifier. The old filter was practically black and was in dire need of replacement. This filter fit perfectly in his purifier, started filtering out irritants in the air, and he stopped sneezing and was able to sleep well once it was replaced. If you have a small Germ Guardian Air Purifier, these filters fit perfectly in and will help get your allergies in check.

This is a HEPA-rated air filter for a unit I use in my bedroom at night to help me sleep. After about 6 months use I needed to replace my worn filter for a new one. This one fit the bill. I suppose it cleans and filters the air, the filter sure looks like its battle-worn. So pop in the new one and I suppose its doing its job and cleaning the air I breath. Dont know if it works against Covid or not but taking no chances. My inside air is going to be fresh and clean with two different air filters running, both HEPA, as well as my home a/c unit with HEPA filter.

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

I really like my table-top filter. Judging by the discoloration that happens, I would say that the filter is taking a great deal out of the air in my apartment. Between allergens and other current health threats, I am glad to have these filters cleaning much of the stuff in my air.

While these are just filters, the machine from this manufacturer is also very good. I have issues with allergies, bronchitis and asthma but these systems, including the filters offer relief. Recent years added significant wildfire smoke in this region, but I got through that as well. Like this brand

This fit my GermGuardian model AC4100 like a glove. Easy to install - simply pop off the back over, remove the old filter, pay attention to the arrows and put the cover back on. Authentic filter replacement; will purchase again.