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

I purchased this to clear out pet odors and cigarette smoke. It works SO well that I bought a second one. Love the ability to add essential oil to machine to add a fragrance to any room, but not an overpowering smell... just right. It's small enough to easily move to another room, but it covers a large area for its size. It has a sleep feature that's very quiet, and the other settings are not loud. I highly recommend this!

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!

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.

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.

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.

This is a great compact air purifier for a small space. I bought it for my office which is about 100 sq ft with furniture in it. I have bad allergies to dust and this has really helped eliminate the issue. With sleep mode I can on be conf call and not be disturbed. It is quiet.By the way the customer service is amazing. The product showed up without a filter and I didn’t want to return as a replacement will take a while due to back order potentials. Perfectly as the customer service handled it, after my request email, they rushed me a replacement in 2 days. So great!

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.

Need specifics on direction to install air filter. Manual says it’s written on the filter tab but not.