- Smart Air SA600 Large HEPA Air Purifier for Pets, Cleans 2400 ft²/hr, For Homes, Offices, Dual Inlet, 2X 99.97% H13 HEPA, 2X Carbon Filters, Washable Pre-Filters for Pet Hair, Allergens,Odors,Gases

We purchased two of these after researching single room air purifiers with high flow rates per dollar. Filters are reasonably affordable and last a year. The flow rate is really impressive and the sound is soothing (we run one while we sleep). It's hard to measure air purification in most contexts, but we do have a air quality sensor that shows a relatively quick drop in particulates when the fan is running. I love that the controls is a simple analog dial. There's nothing lit up flashing in our room at night nor are there a menu or options we're unlikely to use; just 3 speed options + off on a rotary dial. Nice and simple. Perfect.

I have run Smart Health Model S in my office for a couple of weeks now and have already colleagues asking me about it. I have followed Smart Health’s research on indoor air quality for a while, including their research on DIY air purifiers and tests of various HEPA filters, but decided to wait until this model was available on Amazon, for cheaper US shipping. Ultimately an air purifier is just a fan next to an air filter. Some air purifiers try to make this more complicated than it should be, with inscrutable controls and questionable features. The Model S has a simple dial with an “off” and three “on” speed speed settings. There is a carbon filter for odors and VOCs, and a traditional HEPA filter. All this in a great design that looks like an attractive piece of furniture and not an oversize gadget. I measured the wind speed with an anemometer and tested the purification with a PM sensor. I’m satisfied with the results in my relatively small office, and I think it would be fine in a smaller bedroom, but I don’t know how it would perform in a larger space. This model is probably too small for a larger living room. The three fixed speeds keep it simple, and having just three speeds is common for air purifiers. Most of the time, I keep mine on speed 2, and sometimes lower it to speed 1 if I find it too loud. Speed 3 is quite loud and I would only use that if it’s particularly dusty or I want to clean the air quickly. The one thing I wish for is a speed between 2 and 3. I haven’t had to change the filter yet. It’s done by holding down two handles on the left and right sides, and lifting the top of the unit which contains the fan. It’s easier than it sounds. The handle mechanism (see photo) is quite well designed. Inside, you’ll see the HEPA filter, and the carbon filter below it. Unlike some other air purifiers I own, the plastic on this model has a surface that doesn’t appear to attract much dust itself, which is a bad quality in an air purifier.

It's not a bad purifier per day, but it's just lacking in enough areas to make it not worth the higher price. For one, it's kind of large for a "small" purifier. It may look stylish but the fact that it's a larger footprint that also needs to sit on the 4 legs in each of the 4 corners, it limits the places you can put it, like it's too big to fit on most end-tables or shelves for example. The only saving grace here is that it sucks air from the bottom and then blows up, so you can squeeze it into a tight space between things if you want. Second, it's not quiet. The lowest speed has little to no fan noise, but the motor hums a high pitch that is annoying. At higher speeds the fan is louder than the hum, but then the fan noise is high. I think around 58 DB at high speed which is louder than most large higher quality air purifiers, or at least large purifiers on a medium speed which end up with a higher cadr at medium than this does at high.

I have 3 of these now in my apartment. Took months of research and sending back a few other brands, to find the crem de la crem. This has the most simplistic features and it's actually cool that they have an oldschool dial to it. One reviewer complained about it, but that's what keeps the EMF emitted from this purifier very low. When electronics have fancy panels and LED buttons, the EMF radiation emitted is very high and not good for your living environment. These push a good amount of air for the size of them. They use PET/Polypropelene filters and not fiberblass like a lot of companies, so you don't have to worry about harmful glass particles shedding over time and getting back into your air. The particles that would maybe fall off are not harmful to the lungs. These use a Hepa 11 filter, but that's because you can push more air through them. They still filter the same as a HEPA 13 down to .01 microns, but the efficiency is 95% first pass as opposed to 99.7% I believe. I run mine on setting 2 as it will filter better by not rushing air too fast through it. Not to mention setting 3 is a tad too loud. Setting 1 does nothing and should never be run on it. My only suggestion is if they increased the wattage used on setting 1 so it actually moved a tad more air, yet stayed quiet. And if they added one more setting and made it 4 settings total would be absolutely perfect. Setting 3 now should be where setting 4 is in the future. And the new setting 3 should be slightly faster than setting 2 now. Overall though you won't find a better purifier for a 500sq ft. space. This thing destroys what's on the market. Another reviewer mentioned setting 2 being too loud. I don't think so at all. I could be right next to this and make a phone call easily and I doubt the person on the other line would hear too much wind noise. I was buying these from China before they became available on here. Had to annoy them on Instagram to get them to put these for sale here in the US, because shipping will deter tons of buyers. And walla! They are now up for grabs. Thanks Smart Air. Your team puts insane amounts of dedication to studying air pollution and how to have the safest, most effective products. Not to mention the EMF that's emitted from the Smart Health is very very low. Surprised you don't market that. Most other purifiers will hit you with higher Electro Magnetic Fields. Maybe one other edition would be shielding the electric cable with aluminum foil on the inside so this puts out almost no EMF. But hey, I'll take what you guys have!

Was hopeful....would give zeros stars but, that's not an option. Product tested. HEPA filter smells strongly of sweetish, cloying, chemicals, right out of the plastic wrap, causes itching/irritation in throat, makes whole room smell when turned on and run for less than 20 min. I recommend people test them in a small, well ventilated room. I always test them in the bathroom where I have an exhaust fan and window to air out when/if this happens. HEPA filters used to smell clean and slightly bleachy like a fresh pack of paper towels or paper plates. They used to make the air in the room feel cleaner and you could feel you were breathing easier not worse. Not sure where thery are making them, or what they are making them from or what they are stored near, but they should not stink of chemicals and they should not make your house smell worse and your breathing worse. I wonder how many people are made sick by these chemicals? These air cleaners should be better regulated. You are taking your chances.

the unit itself is good. Sleek and pleasing shape and button interface, low noise, easy filter changes. The fit of the plastic mesh prefilter is subpar, introducing a slight bow when installed that allows air to pass along the sides. Biggest issue is filter longevity, had the alert trigger within 3months of setup, this despite boasts of “up to 18months”. FAQ on their website says the sensor was calibrated for polluted Chinese cities so you can most likely reset it and expect many more months of use. Reset alert just went off again at 5mos. hepa pleats were in fact dark grey. charcoal filters have no way of indicating expiration so I assume they were spent as well. Replacement of the 2pair is $105. At this rate I will be spending $200+/yr to keep this unit running optimally. Just installed the Pureburg set, which includes two charcoal and two hepa -a bundle that smartair strangely doesn’t offer- for $38. It’s great that they’re a B corp but with what looks like an almost entirely China-based team, why are we paying northern european prices for what is essentially a drop shipping company?

I had first purchased a blueair 311 auto but discovered testers showed it produces Ozone! Research it. They say it doesn't "emit" Ozone but i didn't trust that as the wording on the Blueair site seemed shadey. Researching I found others had done testing and said that it had released Ozone. That scared me. So now I have this guy. It really moves air. It has three speeds. Low you cant hear it but can feel some air moving. Medium is where I usually keep it and sleep with it on med too. Makes a nice, unobtrusive white noise. High is a bit loud in the bedroom but would be fine in a bigger room or if your not trying to sleep. I got the carbon filter too and the room feels very fresh. I plan on getting a second when I can. As for the dial. I have no problem turning it. My husband is not a fan of it. Kinda like a rotary dial. If I could add one feature it would be a pre-filter because we have a cat and it would catch a lot of hair, probably extending filter life. I recommend this filter because it doesn't produce ozone or Ionize the air. (Read up on that, it's not something you want) I also got the 3 year warranty because you just never know.

I really love my new air purifier!! I have a Winix one as well, but it’s in storage at the moment and I needed one to help clear out my brand new apartment paint and cabinet smells. This apartment was completed in May and they didn’t off-gas which caused a lot of problems for me, so I baked the apt for 4 days (heat on 90 degrees, open windows, fans circulating the air in and out, all fans and vents turned on high, new AC vent filter designed to take construction particles out of the air and a bunch of activated bamboo charcoal bags inside the cabinets) and thankfully this arrived the day I was moving in so I added it to the arsenal. For me, I noticed a major difference in the quality of air and I just felt like I could breath easier. By day 2 my headaches were gone. My main reasons for purchasing were for VOC removal, affordability and adorableness. Things I love: *Design is cute. *Perfect for a small apt (800 sq ft) to circulate the air, I change the rooms for best effect. *Quiet on low maintenance settings *Seemed to clear the whole apt in about an hour *Great as a white noise maker at night while I sleep to keep neighbors noises from waking me. *No lights or buttons to reduce EMF. *No lights to block out so I can sleep. *Great value. My favorite thing was watching the videos these guys made for testing how well it cleared VOCs. I enjoy watching science experiments and how things work, so I liked seeing that they thought about this and tested it.