GermGuardian Air Purifier Replacement Filter E, HEPA Pure, for Models AC4100 Series

I have several of these tabletop models and they work well. Low noise and I usually find that 6 months is about the max of time on the filters. I have them in closets and pantry, one in my office. The only negative is that I can't tell if the UV is on, off, or burnt out.

These air purifiers are great. They've helped improve the air quality in my bedroom and have made breathing much easier. You can visibly see the difference on the filters at the end of their lifespan - it collects so much gunk! I'm really happy I purchased this and will continue to use it.

Filters were exaclty what was ordered and we received them promptly. have them saved to reorder on a regular basis thank you!

The GermGuardian FLT4100 system works extremely well filtering the smoke and smells when doing pyrography. Helps keep the house sor shop smelling fresh

I love my little air purifier. It keeps the air in my bedroom clean so I am able to sleep in peace. The filter is easy to install and, because I clean it every month, lasts for 6 months.

Great product and fast delivery time.

Great filters for a great purifier, my daughter uses it in her dorm room.

This is a hard to find filter for air purifier. Glad to find it at Walmart.

I do recommend this product but the prefilter is not like it use to is see through doesn't have enough to clean the air for the money not good enough it should be thicker the price should be $9.99

Wrong sized items, purchased in error. See attached photo of the 2 smaller units from Walmart as opposed to the single larger one. How do I go about returning the wrong items and purchase the single larger one?