4WDKING Car Air Purifier Ionizer, 12V Plug-in Car Air Freshener Gadgets with Dual USB Charger Removes Cigarette Smoke, Pet and Food Odor, Ionic Ozone (Black)

Some people are saying this device doesn’t work; I don’t know whether they got defective ones or whether they just don’t know what to expect from an ionizer, but I can tell you mine works. I know what a functioning ionizer feels and smells like, so I plugged this in and immediately got close to it and took a whiff. Not only did I smell the negative ions but I started feeling unwell within a minute or two, which is a risk with ionizers. Their proper functioning involves the emission of ozone (that’s what you actually smell when they’re working), and exposure to too much ozone can cause health problems (I didn’t realize this when I conducted my little test). This is not a mark against this device; my having felt that way after getting right up to it and snorting the ozone (a not-very-bright move on my part, I guess) simply proves that the one I got works. I’m also more sensitive than many people are to various physical stimuli, so what makes me feel yucky probably won’t have that effect on a majority of people. Exposure to negative ions/ozone in moderation is a good thing; running water gives off negative ions, which is a major reason waterfalls are so exhilarating to be around.As with all ionizers, you’ll want to use this one with care, and not more often than necessary. But 4WDKING generally makes good stuff, and provided the device you receive is not in some way defective, it will do what it says on the tin.I’ve only used it for a few hours so far so I can’t speak to its longevity, but it did do a nice job of cleaning food smells out of my car. I’m a vegetarian, more or less, and I drive for DoorDash, so I bought this device primarily to eliminate meaty and other unwelcome food smells from my car, and it does seem to do the trick.Not all cigarette lighter sockets (and things designed to go in them) are created equal so I can’t know how it will behave in other people’s cars, but while some other inexpensive devices have exhibited the problem reported by at least one person of not staying in the socket, this device does stay put and functions just fine in the lighter socket of my 2019/10th-generation Honda Accord, even while traveling over bumpy roads.One person talked about metal construction while in fact all the external parts of this device are plastic. But the grille thingy on the business end is chromed and could reasonably be mistaken for metal. The blue light is kind of bright, but it blends perfectly with the blue factory lighting in my car and I don’t find it distracting at all; quite pretty in fact.In summary, I’d say, based on my limited experience, that if you’re looking for an effective air purifier for your car, giving this one a try is worth your while.

I bought a used vehicle and I couldn’t detect any smoke smell at first. But after a few weeks I would get a nose full of stink. I tried the little trees. They last a couple weeks then back to the stink. This unit definitely makes a difference. I don’t get that nastiness when I jump in.

Didn’t work in my Pontiac g6 it was too long when plugged in needed to be shorter on the actual plug part

Great for smoke

There's a smell that comes from it that I'm not really quite sure what it is. It might be the smell of plastic or like electrical in some way but other than what kind of looks like just a little blue LED I'm not sure it does much. Great to use just as a USB port though.

I've had this for years and it's still working!!!!

Omg this totally the best thing I could of bought.. my used SUV belonged to a smoker I’m an ex smoker and this little thing truly helps with the smell.. and it’s a charger win win

USB works light is on , about refreshing the car from odor I don’t know , I don’t smell any fragrance maybe it’s odorless. So it’s a mystery