Air Purifier for Home Large Room Up to 3,120ft², Washable Pre-Filter and HEPA Filter for Smoke, Allergies, Pet Dander, Odor, AQI, Auto & Sleep Mode, Timer, 5yr Warranty, Airmega 400(G)

We purchased this unit in June 2022, nearly 3.5 years ago. That said, this review is coming from a place of experience with this air purifier. We had just adopted two cats that were born in the bushes outside our home, and I don't particularly care for cats (or more specifically, the smell of cats)! I was concerned about the price of this machine, not because it was crazy expensive compared to other machines that claim to be able to do what this purifier does, but because I didn't want to spend even half of what this thing cost just to keep the house from smelling like cats. On top of that, I didn't want to have to keep buying filters for it. I chose to bite the bullet and purchase this because I figured that if this device could keep the cat smell to a minimum, it would be worth every penny. The recommendation is every year or two, but they are so easy to clean that we were able to extend the filter life quite a bit! The outermost screen filters are quick and easy to get the dust off. It takes about one minute per filter (one on each side) to vacuum off. We clean these filters every 45-60 days. The innermost filters - the big ones with the charcoal - we clean every 12 months. Those take a little longer to clean, but no more than 5 minutes with a vacuum attachment. Everything on this device is easy to remove and replace. Now for the important part... Until just this very week, I have never - and I do mean NEVER - noticed a cat smell in our home. My in-laws have a cat, and they have commented several times over the years how amazing it is that our home never smells like cats - or any odors for that matter! My sister-in-law is allergic to cats but doesn't have any issues at our house. Fast forward to today, I have grown a bit fonder of the cats but still don't like cat smells! I came to Amazon today to purchase my very first set of replacement filters, if that tells you anything about the longevity of these filters! I decided to leave this review just in case anyone else is on the fence about this air purifier. It works. Perfectly. All day. Every day. Additionally, I no longer use expensive HEPA filters in our HVAC system because this purifier takes nearly everything out of the air that those would catch anyway. For anyone who's curious: We have a 1900SF home. I was able to find a great location for this fairly close to the middle of our home so that it purifies the entire house. I go weeks at a time without even realizing this thing is in the room - it just blends in and disappears! If it detects odors, it will speed up for a brief period of time, but almost always runs at the lowest speed - nearly silent. I'm certain that this would even work in larger homes than ours, because in our home it typically only runs at 25%. There are a number of controls so you can adjust the speed, setting, schedule, etc., but we never use them. We just set it and forget it. The power this unit can produce (and the amount of air it can move) is incredible. This purifier brings air in from the sides of the unit and exhausts it out from the top, creating perfect circulation. As an added (undocumented, unsupported) function, anything you place near the top of this unit (potpourri, air diffusers, essential oils, etc.) is quickly dispersed throughout the home.

A lot of research went into this, as I didn't want to spend over $500 but in terms of air filters and purifiers you get what you pay for. This really does clean the air. Set up is less than 10 minutes. I live in a rancher 1 story and placed it in the middle of my house. It does the job well. It can be a little louder at high speeds but not annoying, more white noise than anything. I placed my yard sneakers next to it... No socks shoes smell like death I eventually threw them away but when I placed them near the purifier it must of triggered the air quality sensor and started running. No joke this thing worked, I feel horrible that my shoes had the impact on air quality, now I know why my wife wanted me to get rid of them. We have a dog and 3 cats no animal or yard shoe smells in the house. Some advice; clean your house thoroughly before turning it on. Give the purifier a chance to maintain air quality more than fix it- dust and vacuum first. Make sure there is no blockage on each side (close to walls or other objects). Read the instructions that came with it, understand the functionality which best suits your conditions. I read other reviews about a plastic smell omitting from the purifier but i didn't get any of that. My wife has a sensitive nose, didn't notice anything like that either. Dust has been minimal also, most likely going to buy more Coway products maybe the smaller version for select rooms. Only downside which is not the fault of Coway is that my dog likes to hang her face above the fan, I don't know why-but she sometimes changes the speed and setting when she does it. I'm happy with this product, and would strongly recommend it. I don't know how it will impact micro organisms or germs but with what is going on in the world I'm willing to give this thing a shot and haven't been disappointed yet (1 month in)

No tengo un aparato para medir la calidad del aire, pero cuando cocinamos si elimina olores y no es muy ruidoso ni desprende algún olor a plástico. El filtro dice ser 100% HEPA.

This is a quiet and effective filter. There are sensors to determine the need for more fan and they work very well. The fan only runs hard when you have poor air such as cooking odours/ smoke. I have not smelled any chemical odour that others have mentioned. The unit was exceptionally well packaged and the components are quality material.

We have had this appliance for over a year and it really does a great job at cleaning large amounts of air. We placed it in the dining room, benefiting from air flow from an open concept first floor. It eliminates kitchen smells quite quickly (especially fish and meat). The Smart mode easily detects when more air filtering is needed. At its usual low speed, the machine is actually quite silent. You can hear it well when it is at full blast but the noise is tolerable while you’re getting your air filtered. It also tells you when you need to change your filter based on cumulative airflow rather then just time passed. I’d recommend buying this!

This air purifier has helped so much with my allergies. It is so easy to pop off the sides and clean the screens with a vacuum. It is a little on the noisy side when on full blast. When I use the Smart setting where it decides to ramp up and down on its own it usually runs pretty quiet, and only ramps up when something requires it to, like cooking. The filters look like they will last about a year before needing replacement. I am basing this on how much of the indicator has moved and how long we have had it. It is nice it tells you when to clean the prefilter screens.

We chose this one in hopes it would help alleviate allergy symptoms. We love it, we can tell a difference when it’s off (cats tend to jump up and hit the touch buttons). The pet filters are wonderful and last a long time.