Has replaced my bedroom fan. I crank this up to level 3 to sleep at night. My dogs seem to like it too surprisingly. I’ll see them huddled under my bed in that small room so they must enjoy the air quality in there or else they’d buzz off somewhere far away. I’ve had to change the carbon filter a few times and that gets expensive but it really does get filthy with dust. It was caked on there! But hey, that’s stuff I’m not breathing today so I have to be thankful. I run this 24/7 and get mad when someone shuts it off. It’s a bit inappropriate but the coolest thing is to rip a huge fart right next to it and have it sense it, turn red with rage, and then it automatically cranks up the power to maximum.

We have two asthmatics in our family, live on a busy New York street, and have a pet. Needless to say, air quality is important to us particularly living in an urban environment. This air cleaner has done wonders for our apartment. We have the 300 in our living room, and the 100 in the bedrooms. Dust levels have gone down, and we’ve noticed a big difference in allergies and quality of breathing. The units clearly respond when there is a pollutant introduced. They also super quiet for an air purifier (though it is louder when on orange or red), actually providing a nice white noise at night. Great for those living in cities looking to drown out street noise without an annoying, loud sound machine. We keep the unit on auto with the ionizer turned off due to ozone concerns, but take advantage of the special setting for flu/cold season with kids in the house. Highly recommend!

We bought an 1850 foreclosed home about 3 years ago. We fixed it up and keep it tidy but I’ve been ill with respiratory issues pretty much since we moved in. I have had asthma all my life but it was pretty much dormant for the last 15-20 years until we moved in. After experimenting with different things, I bought a couple of purifiers, including this one, and put them in bedrooms and common rooms. This one went in the room with our wood stove. It looks cool and does a really great job as the pictures show (filter before and after about 1 month). I’m so glad that crap isn’t going into our lungs anymore and after a few months, my respiratory issues have improved dramatically. Will likely buy a couple more when our finances allow.

This model was purchased in Nov. 2016[is actually the DX5 model which is the new model for the 100- I had contacted Fellowes to confirm]; as a replacement for another brand, and have been using for a little over 5 months in the bedroom. I have severe allergies and asthma, which is 1 reason I made this choice- being certified by the allergy/asthma foundation. So far it has been working great.
In the beginning I ran it only at night, so the filter change indicator came on at about 4 months use. I like the ease/ simplicity to change the filter. I don’t use the plasma feature because of reading about ozone concerns, but that feature is easily turned off. The display info. is easy to understand. It is quiet on low to sleep. It notices very quickly when contaminents/ chemicals are present [ the red light goes on].It seems very energy efficient[according to my electric bills.The only negative is that the display is rather bright in a darkened room… maybe something that could be changed by the company.

I love it. My husband don’t care for it.

I got this for our daughter (3 at the time) started having respiratory issues. We have a cat and also carpeting so I figured the dust & cat hairs were causing it. The hubs doesn’t think this works because there wasn’t much improvement in our daughter’s condition. But when I showed him how much dust & cat hair this collects he was mind blown. I vacuum the carbon filter every month or so and replace it every few months. The amount collected is really scary. He’s still skeptical about how effective it is to help with the air quality but to me, even a little bit helps. Our daughter’s asthma is more well controlled now and it may be because of this or it may not but I’m not going to stop using it. It puts my mind at ease knowing at least SOME of the air pollutants are being sucked away. We’re going to be moving to a larger house soon and will definitely get their larger 300 version. I feel it’s worth the investment.

We have this set to auto and have it run 24/7 so sometimes it gets a bit loud if it thinks there’s high pollutant (red color) at the time. If it’s at low (blue color) we can’t even hear it. But even when it’s loud it’s not even that bad. I guess we learned to tune it out.

Also, we don’t use their Fellows carbon filter. Amazon sells the generic filter that you can cut to size. It works just as good. It makes replacing them less painful because the filter’s are so much cheaper.

This is the noisiest air purifier I have ever encountered. It’s noisy enough to prompt me to switch off the power at times, which defeats the purpose. However, its pollutant detector kicks in whenever there is a slight change in air quality and the blue display is appealing. The unit came in Fellowes packaging, which is also reassuring, as I have had the most positive results while using Fellowes purifiers. So… there you go.

I purchased this air purifier for my son’s family after they moved and were experiencing all the smells from paint and other remodeling chemicals. I have received numerous texts, emails and phone calls thanking me for the air purifier. It apparently has made a huge difference in the indoor air quality. (And my son is a man of few words)