Negative Ion Plug In, Portable Negative Ion Generator for Home,Automatic Release of Anions,Easy to Use, More Suitable for Bedrooms, office, Toilets, Garages,Small Room（4 Pack)

I am truly amazed by how good this product works. I have two cats that, let's say, leave behind less than desirable scents behind after they do their thing. I tried everything from different litters to deodorizers to plug ins, but since my oldest no longer buries her "stuff" (comfortable? Isn't she?), the scent would permeate around the house. I plugged these bad boys in near the litter boxes and what a difference! Scents are neutralized and the most you smell is right when she drops her stuff.I also have one plugged in the kitchen wall and my cooking smells do not sit around the house. You know when you love the smell of pork when you first cook it, but don't love the smell of pork while you're trying to sleep?. It's like having a guest overstay their welcome...But in both cases they work well. I also love that you get four so you can plug multiple around the house. Even though i think these are intended for small places, i have an open concept kitchen and rooms are of fair size plus 30 ft ceiling in the entryway. It works and I'm happy.

Looks just as pictured. Plugs in easily and starts with push of one button. Small comes on so can tell it’s on, but not so bright that it disturbs me at night. It’s almost completely silent, very quiet! The compact size is also nice, both for traveling (clean that hotel air just to be safe), or at home. It can be plugged into a traditional outlet while still using the other outlet side (I hate when some devices are so bulking they take up the whole thing). I’m not using it so much for odors, so I can’t really speak to an improvement there, more for other small particles, dust, allergens, etc. I like to think it’s doing what it’s supposed to, but hasn’t really been long enough to be certain. But I’m happy so far and will be bringing it along on my next trip as well as using in my bedroom at home.

i keep 3 in my area. i have 2 in my room, one behind my nightstand, and one by my bookshelf. and 1 in my bathroom. i have 2 cats that prefer my room over anywhere else in the house, plus their litter box is in my bathroom. i recently adopted my second cat, so i needed something besides plug in air fresheners the help with smell. keep in mind the smell is only with the litter box after they use it. im a clean freak and very organized. i also had the problem of having stuffy noses and stuff with the cats always being in my room. i wanted something to help with the air quality but i didn’t have the space or aesthetic for a big air purifier. so i found these with relatively good reviews. i use this with air fresheners because i like the way they smell. and honestly, i think it does pretty good! my mom has only commented on my room when i feed them wet food, other than that, no complaints from me or her. so that’s a win in my book! i recommend giving this a shot, and if you don’t like them you could always return it ! it’s a good deal for four of them !

One problem, which is tiny, is that if you loose power a lot, you'll have to remember to turn these back on.

I used this in my car (they clain you can use it in a small room). This product, though left on in the car for days, has done nothing to positively affect the smell that lingers after cleaning.

Easy to plug in cleaner air. No noise or smell. Was surprised by the price. 4 small devices come in 1 box, about $3 per device. Too early to tell if it is making a difference in our house's mold levels, but overall satisfied with this product.

Why did you pick this product vs others?:Still use it to this day

YOU PLUG IT IN AND THE GREEN LIGHT COMES ON! IS IT ACTUALLY DOING ANYTHING? I DON'T KNOW! I AM AN ELECTRICAL ENGINEER AND I KNOW THAT NEGATIVE IONS HAVE A CERTAIN SMELL. THIS DOES NOT GIVE OFF THAT SMELL SO I DOUBT IT IS DOING ANYTHING! I MAY RETURN THE 4 PACK!