OION Technologies 4-in-1 True HEPA Air Purifier 3 Speeds Plus UV-C (Black)

I was a bit hesitant about purchasing this air purifier because of its size being small and there were very few reviews.After ordering it and getting it in the mail,setting it up was a cinch and it was very easy to put in the filter. It was simple to figure out how the air purifier works without the manual. I turn it up on the highest setting and kept it going everyday for hours and it works without a problem. Immediately the air quality changed dramatically. Within the first two hours after getting it home and plugging it in, the air purifier started to work wonders, the air smelled cleaner, there was less dust and my cat that has asthma had fewer breathing issues. That does not mean my cat does not still have asthmatic issues it just helped her breathing a great deal. Once the filter was ready to be replaced, it was easy for me to find a replacement on amazon.com and I'm very impressed with his air purifier. Also the filter last a while, I had this air purifier going all day everyday on the highest setting and the filter lasted a month and a week. Perfect size for a small room, I mean a studio size bedroom no bigger than maybe a little over 250 sq ft by 200 square feet. Any bigger and it's not going to do much it is not going to work as well . It is a very quiet air purifier. I'm very much impressed with this air purifier and the filter. I will be buying another one in the future. This is an excellent product and I have no negative statements about the air purifier. It's fantastic and worth every penny you will spend. Update 12/2/2019 : Worked fine during the final weekend of November 2019. Then will not turn on. Just stopped working all together. Did not last a year. Worked wonderfully up until last weekend. Still would purchase, that is if the price was still under 45$. Get warranty!

I've had this filter for almost two years now. It has helped me clear the air in my apartment, and keep it that way. When I moved in there was a strong musty/mold smell from a large closet area. I could not have stayed here if the smell continued, so I did some surface washing and got this filter. I kept it running regularly for weeks. It worked great, and the noise was minimal. At first when I turned it off the scents would return fairly quickly. Now I only run it for a few hours, maybe once a week, and I no longer notice any smell. I particularly like the timer function. There's a timer on it that can be set for 2, 4, or 6 hours. I put it on and forget about it. The only critique I ever had of the filter is that I find the control buttons to be very sensitive, so that it will turn on, then off very quickly with only what i think is a single light touch. It took a little getting used to. That's a minor inconvenience when the filter as a whole works great.

What do we do if they no longer sell the filters. Why buy it? Looking high and low to find replacement filters. Great product but its a shame to throw away perfectly good machine because they won’t sell filters for it.

While this is a quiet and effective item, I've been unable to locate replacement filters for the past year either on Amazon or on the company website. I've sent them emails inquiring about it but have had no response. I'm dismayed that they are continuing to sell this item since it will be obsolete once the filters get dirty and become ineffective. If I had known this, I would have purchased a different product.

Very quiet and efficient.

I’ve had this since 2019 and it still works! Because I haven’t been able to get a filter replacement. I just vacuum the filter and put apple oil for smell and freshness to circulate. It really works good for its small appearance. Helps with my dust allergies and breathing. I have a few air purifiers. I put this in my library because it started to smell book musty. And it worked great! I have put it in my teenage son’s room because we know they don’t smell fresh. And again, cleared it out. I’m very happy with this machine. However, I don’t understand why you can’t buy separate replacement filters.

I have three cats that spend most of their time in my bedroom. I purchased this to circulate fresh air and help contain pet fur and dander. It is easy to set up. I like having three speeds with the option to turn UV-C Sterilizer on/off, including the sleep timer/function. The lowest speed is quiet and becomes louder as you turn the speed faster. I've been using it for a little over two weeks and my room smells fresher. I also noticed less pet fur in my room when I sweep/vacuum but wish it could remove more. If you want a portable purifier, this fits the bill. If you want a purifier that will do a better job removing pet hair, you'll have to look into something larger.

Smaller than I expected, but still works good. Whisper quiet on low setting, but noticeably loud on other settings. Filters are cheap and available on Amazon.