AC4100

I have one of these in each of my bedrooms. They are inexpensive, though kind of loud. They work great as a sound machine at night. Honestly, I'm not entirely sure of their overall effectiveness...or that of any air purifier. Sometimes I think they're just a sales pitch for money. I notice a much bigger difference in dust and odors when I stay on top of vacuuming and other cleaning. Since they have a physical on/off switch, I connected each to a Zigbee plug and integrated into Home Assistant. GermGuardian Air Purifier for Home with HEPA Filter, Removes 99.97% of Pollutants, Covers up to 375 Sq. Foot Room in 1 Hr, UV-C Light Helps Reduce Germs, Zero Ozone Verified, 11", Silver, AC4100CA https://a.co/d/gnGXI0n

I have a GermGuardian setup to blow right after my boxes. It’s the ~tabletop-sized one (that requires E filters). I have it on top of a low-height wooden box for shoe storage. So it’s ~18-28” above the ground. That seems to do wonders I also have a PetFusion privacy gate that blocks the area around cat boxes. It’s made of wood frames and semi-opaque plastic in the middle of the 3 panels. It’s maybe 3-4’ high. I think it does a good job of keeping in the litter and the smells The air purifier blows over cat boxes and is kind of corralled in the litter area, thanks to the walls and this cat privacy screen

For less than that I got two germ guardian hepa air filters, and a Bissell hepa vacuum.

Germguardian, not sure about for life. But they warrantied one free of charge, paid for return shipping and all. Filters aren’t crazy, and you can see the work they do. I have no measurements for it, but I like em. They all are essentially just motors and fins.

I have 2 winix and 1 Germ guardian they both work well. Slightly favor the winix. I change the filters every 6 months. Couple tips- 1. Buy cheap bags an amazon and swap it out daily 2. Buy charcoal granules and put them in the waste bin - if you do this you can swap the bag eod. They absorb smell https://a.co/d/0a1CxSgw 3. Keep a window on each side of your home slightly open. This does wonders for keeping air flowing and getting rid of smell.

I currently have 2 Winix and 1 germ guardian. They are both good but if I had to choose I would go with the Winix. The pre-filter does a great job collecting debris and dust which I think helps the HEPA last longer. I changed my filters twice a year and I use the genuine filter. https://a.co/d/4e6aipw

I do. I have 3 school aged kids aka plague carriers. We have Germ Guardian UV-C plus HEPA filters in each room. It greatly cuts down on kids reinfecting each other and us parents. They also collect cat hair pretty well. The Germ Guardians were $98 each and 4pack of replacement filters is $30. Saving one doctor visit for the 3 kids covers buying a unit.

Blues air or GermGuardian with UV. I’ve had mine for years and it’s been great