AIRMEGA 300 The Smarter Air Purifier

Airmega 300 is one good looking air purifier made for small and medium rooms. You can actually place in a room large as 1256 square feet. Air purifier from Airmega has an exciting design. It is a large model, and by being large, it is powerful. That is not the only good thing about this purifier.

Coway Airmega 300 Smart Air Purifier

Airmega 300 is a modern device that uses the latest technology. You can see the quality of the air right on the device display. For the more advanced users, you can set up an app and monitor the air quality in real time on your smartphone. There is also Wi-Fi connection which means that your air purifier can be accessed over the internet. Even if you are miles away, you can connect to the app and see the quality of the air in the room where is Airmega 300 placed. And not only you can monitor what is going on with the air, but you can also adjust the purifier to work faster or slower.

Features of AIRMEGA 300 Air Purifier

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Feature Info
Powerful Performance
Covers up to 1,560 square feet(400) / 1,256 square feet(300).
Real-time Air Quality Monitoring
Airmega’s air quality sensor tells you the quality of the air in the room in real time. The brightly colored LED ring lets you know if your air is fresh or unhealthy every minute of the day.
Filter Lifespan Indicator
The filter lifespan indicator will tell you when it’s time to change the Max2 Filter.

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Air Mega 300 3 Special Modes

Airmega 300 has 3 modes to run on. Auto, Eco and Sleep mode.

Auto Mode:

The best mode if you ask me because the air purifier will adjust its work on purifying air according to the pollution in the air. If the contamination is high, then it will work faster and harder, and if the air is clean, then the work will be light.


Eco mode is also useful to use in situations when you are not in the room, and you don’t really need top quality air at the moment. An air purifier will monitor the air, and if the air quality is good in remaining 10 minutes then the fans will shut down, and energy will be saved. But as soon as the pollution in the air rise then the air purifier will turn the fans back on.

Sleep Mode:

Unfortunately, 300 model does not have a smart auto mode for the sleep mode. That means that sleep mode will need to turn on manually. That is not a big problem because when you go to sleep, you can just press the button and sleep mode will be activated, Fan speed will be reduced, and air purifier will not produce any noise. You can sleep like a baby while Airmega 300 keeps the air clean.

Airmega 300 uses true HEPA filter to remove all the airborne particles. It can remove 99.97% of particles. All the particles like mold spores, pet dander, allergens, pollen, and dust. It also has an activated carbon filter which is extremely good at removing bad odor like smoke, pet odor, kitchen odor and even some gases. Dirt on the filters is also monitored, and you will be notified when your filters get too dirty. There is no lifespan on the filters which is normal because people who have very polluted air in the room will make their filters dirtier than the people with clean air in general. Because of that, it is unprofessional to talk about the lifespan of the filter. But you can see aspect lifespan of the filters of up to 12 months. There are also washable pre filters which will make the main filter lifespan longer because some of the dirt will be caught on the prefilters.

You can also adjust the fan speed manually. You can set it on low, medium, high or sleep and the fan speed will change. There is also a timer which you can set to 1, 4, 8 hours and the purifier will adjust fan speed according to the timer.

Replacement Filter Airmega Max 2 for Airmega 300

Replacement filters usually cost 1/3 of the air purifier. This math then puts Airmega Max 2 filter on the most affordable list. In this replaceable filter, a carbon filter is also replaced which means that the bad smells will be removed faster than before.

q? encoding=UTF8&ASIN=B01C9RIAEE&Format= SL250 &ID=AsinImage&MarketPlace=US&ServiceVersion=20070822&WS=1&tag=apfpi 20&language=en USAIRMEGA Max 2 Air Purifier Replacement Filter

Feature Info
Green True HEPA + Activated Carbon Green True HEPA: Traps airborne particles as small as 0.3 micron in size. Activated Carbon: Effective removes harmful gases, VOCs, and even odors.
Product Dimensions 10.1 x 1.5 x 12 inches
Item Weight
1 pounds

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This replaceable filter has green true HEPA filter which has the power of removing 99.97% of airborne particles. And like most of the HEPA filters, this HEPA filter also has a lifespan of 12 months. But keep in mind that if you use it in filthy conditions filter may get polluted faster. And for the best usage, it is smart to keep the prefilter clean. Airmega 300 has the washable pre-filter which you should clean at least once per month. By doing that you may prolong your HEPA filter life for an additional month or two.

This filter is large enough to provide a clean, fresh air for a room of up to 1256 sq. Ft. Do not use it in larger rooms because the air quality will suffer and the filters may need replacement faster. If you have larger room consider buying an additional air purifier and by sharing the work the actual cost of the filters, maintenance, and energy consumption will be lower.


  • Good looking design
  • Built with the latest technology
  • Can be used in bedroom while you sleep because it is extremely quiet in sleep mode
  • Suitable for small to medium rooms of up to 1256 square feet
  • Made of high-quality material
  • Easy to setup and use
  • Has Wi-Fi for remote control


  • Large size is maybe not ideal for smaller rooms because you could have problems with placing it in the desired spot.
  • Expensive air purifier


Airmega 300 is a serious air purifier with the latest technology for control and air purification. It has all the indicators to tell you when to change filters or when to turn the speed on. All of this advanced options and modes push the price to a higher than the usual we see on the air purifiers, but you should know that the quality and the advanced technology comes with a price.

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