Coway Airmega AP-1512HH True HEPA Air Purifier with Air Quality Monitoring, Auto Mode, Timer, Filter Indicator, Eco Mode

What I love: this does what it says it will do, the LED light turns off at night, and you have a lot of options on the settings, timing, sensitivity, and speed. What I wish: that it were smaller and cheaper, but cest la vie. Good stuff.

I have owned this purifier for 8 years with absolutely no issues. It has dramatically improved my indoor air quality. I now own two. I cannot imagine a better and more reliable air purifier. Since the wildfire smoke is really bad right now, I’m glad I already have these. If you don’t own one, now is the time.

Very quiet and efficient. Filters dust, animal hair and smells. We use puppy pads for our little Yorkie and it always changes color when she poops. Easy to move around the house. We move to the kitchen when cooking fish and it gets rid of the smell. We’ll buy another for our bedroom-super quiet on #1 setting.

Works well, easy to install.

Been using for about week in a bedroom, works well, mostly just leave it in auto mode, detects quickly and filters room quickly, very quiet at night on speed 1.

Love this air purifier! Works great and has different settings and easy to clean. I have 2 small dogs and since air purifier have noticed less dog hair on floor between vacuumings. The first filter in purifier I vacuum if there is hair on it. I have also noticed less dust on furniture and our windows are open.

Im not sure how this is so highly rated. Although it does work, more or less, for the price it really has many issues of poor design. Some of the features you are paying for are useless because of the way they work. 1. The Air Quality Indicator is useless. It stays blue (meaning good) even at readings that are clearly high on my 2 separate Air Quality meters. For example, with an AQI of 90 and PMI2.5 of 35 (both of which are definitely too high and cause problems for my asthma), the indicator on this unit still shows that the air quality is good. From reading other reviews, I think this is a design defect and not just a one-time faulty unit. 2. Because of the problem with the Air Quality indicator, that makes the Auto and ECO modes useless as well. If I turn on Auto, it just stays on low fan speed (which is very, very low) all the time. And on ECO mode it seems like it would just never turn on, although I didnt test that extensively. Apparently the air quality would have to be pretty severely bad for this unit to register that its out of the good range. Whereas I need something to try to make the air quality as good as I can get it, not something where a moderately bad air quality is considered good. (There is a sensitivity setting for this indicator, and I had it set to the most sensitive setting. So the issue would be worse at the medium/ standard setting.) 3. The Fan speeds dont make any sense, meaning manual operation of the speed is also problematic. Speeds 1 and 2 are both quite low and dont do much. Speed 3 is then a very large amount of air moved and very loud. In other words, speed 2 is not in the middle between speed 1 and 3. Its much closer to speed 1, and then theres a big jump from 2 to 3. So I guess it would work if you wanted to manually leave it set to Speed 3 100% of the time. Otherwise, there is no speed that meets what I need much of the time, which is a middle speed. Again, after digging deep into other reviews and customer questions, I did see someone else reference this, so its not just a one-time defect in the unit I received. 4. Other misc notes if you do decide to buy this - The Air Quality Indicator light is very, very large and bright, lighting up the dark room when I tried to sleep. Although the user manual doesnt mention this, you can hold the Ionizer button down for 3 seconds to turn off this obnoxious light. - Moving and unpacking the unit as shipped could be problematic for some people. The Coway box it ships in is fairly large and bulky, about 20x22x13, so quite a bit larger than the unit itself. So although its not really heavy, if you have short arms and have to move this anywhere before unpacking, it might be a little difficult because of the bulk. It also means you have to be able to lift it almost 2 feet to get the unit out of the box (theres an inner box that is a very tight fix inside the outer box) or turn the box over. So again if you have short arms or have any strength limitation issues, the unpacking might be a bit of a problem for you even though its not super heavy. Also note that the AC power cable has plastic tightly wrapped and taped around it, and there isnt any way to get it completely off without cutting. That could be dangerous if you accidentally cut a little bit into the AC cable while trying to get this off, so please be careful. Its also difficult to remove the plastic bag on one of the filters without cutting, so you do need a knife or scissors to unpack and set this up. Overall, Im not happy with this at all and am going to buy something else. Update: I decided to give this one more chance. After trying it again, two further observations: - Even with an AQI (on my separate monitors) of close to 150, and PMI2.5 of around 50, the air quality indicator on the unit still shows blue = good on the most sensitive setting, so the auto mode still wont kick up being the lowest level - The unit has started making a whining noise, in addition to the normal fan noise. The whining noise, while not incredibly loud, is more obnoxious and annoying than the white noise of the fan, because its more of a constant tone.

I live in a two-level condo, with neighbors below and on both sides. They smoke tobacco and pot, and the odor comes into my unit. The Coway helps me survive this onslaught. I have two other purifier brands also. The Aeroeve in my downstairs living room, the Coway in the hall at the top of the steps, and a Holmes in my bedroom. I try to keep them on automatic constantly to conserve energy, but when the people start smoking, I turn them all up on high to help clear the rooms. Not perfect, but it would be miserable without them.

Just received this and it’s working well so far. Four stars because this was meant to replace a fan in the bedroom that is used for white noise while sleeping. There are only three fan speeds, and there needs to be one more between 2 and 3. Two is very quiet, almost imperceptible. 3 is very loud with a continuous high-pitched whine in the background. We’re going to keep the Coway for air purification, but we’re having to keep the white noise fan as well. Not quite what we had hoped.

I set up the air purifier and put it on Eco to start. I was concerned because for the first 2 hours the device just showed blue - meaning air quality was good. I was worried it would stay like that all the time. I have a gas stove without great ventilation. I have the unit set up in my dining room - about 15 feet away from the oven(in a straight line - not an open space so a wall separating the unit from the kitchen). The unit turned to purple 3 minutes after I turned the burner on - and red about 5 minutes in - And stayed on throughout me cooking. Once I turned the stove off the unit went back to blue about 5-6 minutes later. The same thing happens if I happen to - ya know - maybe take a puff of something quickly indoors. Even when I’m 20 feet + away the unit turns on to clear the air. On top of all this - I have had issues with frequent bloody noses. That issue has improved since I started running the air filter. This was not the reason for getting the unit but has been a bonus benefit. I think all the above circumstantial evidence does somewhat prove that this machine in fact makes a big difference. I think this unit belongs in every home.