Coway Airmega 150 Review In 2022: The Cheapest Variant

It's not common that we are excited about an air cleaner release as there are tons of it throughout the year. Yet the latest Coway Airmega 150 brings us excitement to the rather dull budget air purifier category. Powered by a 3-stage HEPA filtration, this thin, small-sized machine could be the new benchmark in affordable air cleaning space. Without wasting much time, let's see what is the big fuss about Coway Airmega 150 in our full review below.
online price (US)**
±189.99 $$$/ 7

(annual filter cost ±100)

** MRSP (Manufacturer's Suggested Retail Price)/ RSP (Retail selling price) is accurate at the time of posting.
^ Annual filter cost is calculated based on filter price and 12 hours of usage. Pricing could vary depending on air quality, usage frequency, and speed.
` The indicated online price guides as follows: $ = under $50, $$ = $50-100, $$$ = $101-200, $$$$ = 201-300, $$$$$ = $301-400, $$$$$$ = 401-500, $$$$$$$ = over $500.

Coway Airmega 150 Specification

ProductCoway Airmega 150
13.3 x 18 x 6.5 in
(33.8 x 45.7 x 16.5 cm)
Weight15.4 lb (7 kg)
Coverage (up to)214 sq. ft. (20 m2)
Airflow speed
Dust free (CADR)246 cfm (418 m3/h)
Pollen free (CADR)240 cfm (408 m3/h)
Smoke free (CADR)233 cfm (396 m3/h)
Humidifying(H) speed
- Lifespan
- Replacement cost ($)
Washable pre-filter
HEPA filter
- Lifespan
- Replacement cost ($)
Green True HEPA filter
1 year
Carbon filter
- Lifespan
- Replacement cost ($)
Deodorization carbon filter
1 year
Ionizer/ Technologies
UV-light/ PCO
Other filter
All-in-one filter
- Lifespan
- Replacement cost ($)
Coway Airmega 150 Replacement Filter
1 year
+- 40
Optional/ Addon
Noise level22 - 52 dB
Power usage level6 -57 W
Timer/ SchedulerNo
SensorsPollution sensor
Auto mode
Air qualityAQ indicator
Filter change indicator
More color options
Wi-Fi/ BTBluetooth
Remote control
Child lock
Warranty3 years
Email/ Phone support

Key Features

  • 3-stage filtration
  • 3 fan speeds (Low, Medium, High)
  • Washable Pre-filter
  • True HEPA filter - 99.99%/ 0.01 microns
  • Activated Carbon filter
  • Dedicated deodorization filter and HEPA filter indicator
  • Smart mode - Auto/ ECO mode
  • Air quality monitoring (Good, Moderate, Unhealthy, Very Unhealthy)
  • 3 years limited warranty

Design And Usability

Coway Airmega 150 dimension
13.3 x 18 x 6.5 in
(33.8 x 45.7 x 16.5 cm)
Coway Airmega 150 weight
15.4 lb (7 kg)

Let’s begin with the design and dimension. Coway Airmega 150 is a three times winner of the international design awards which says a lot for a device that is targeted at a budget crowd. The simple and clean aesthetic blends seamlessly without hindering the functionality. Air pollutants are drawn in from the back and distributed at the front air outlet. Moving and finding a place for Coway Airmega 150 is easy thanks to the thin 13.3 inches width, 18 inches height, and 6.5 inches in depth. The 15.4 pounds weight is not the lightest, but you can still carry it for room to room purifying when there is a need to do so. Build quality is great with tight-fitting that prevents any off-gassing. The EZ release design filter is intuitive to slide out the pre-filter for quick washing and drying. As always, Coway Airmega 150 is UL listed, CARB approved and comes with 3 years limited warranty that covers the motor and electronic parts.

Moving to the control and usability. Every functionality of the Airmega 150 air purifier can be managed via the top control panel. You can adjust the 3 fan speeds (low, medium, high) or activate the auto mode that will only use higher fan speed when a high concentration level of pollutants is detected in the room. Otherwise, the air purifier will remain at a low speed. To the left, there is a real-time air quality monitor that works with the pollution sensor to display room quality. In colored LED, The AQI will illuminate in blue when air quality is good, green when air quality is moderate, yellow when air quality is unhealthy, and red when it is very unhealthy. There is also a deodorization filter plus HEPA filter indicator that will alert you to replace the filter every 6 months and the latter 1 year. All that is missing is the much loved timer button and sleep mode.

Airflow, Coverage, And CADR

Coway Airmega 150 coverage
Purifying coverage
214 sq. ft. (20 m2)
Coway Airmega 150 fanspeed

Enjoy a fresh burst of energy without the exuberant cost. Running at full capacity, Airmega 150 air purifier can cover up to 214 square footage of air space. Great for medium room sizes such as bedroom, small living room, kitchen, basement, and single garage. The compact size also makes it an ideal dorm, office cubicle, or nursery home with limited spaces and poor ventilation. We highly recommend you leave it at Auto mode and the air purifier will intelligently decide what speed is best to tackle the surrounding air quality.

BrandPurifying CoverageFan Speed
Medify Air MA-14200 sq. ft.3
Medify Air MA-25500 sq. ft.3
Coway Airmega AP-1512HH326 sq. ft.3
Winix 5500-2360 sq. ft.4
Medify Air MA-15330 sq. ft.3
GermGuardian AC9200WCA378 sq. ft.3
Coway Airmega 150 dust CADR
246 cfm (418 m3/h)
Coway Airmega 150 pollen CADR
Pollen CADR
240 cfm (408 m3/h)
Coway Airmega 150 smoke CADR
Smoke CADR
233 cfm (396 m3/h)
Clean air delivery rate does very well despite the limited air cleaning coverage. Coway Airmega 150 CADR outputs a generous 246 cfm for dust, 240 cfm for pollen, and 233 cfm for smoke. At an ideal condition, the air purifier will swiftly remove all types of air pollutants in the room within an hour or so.

Recommended Read

Filters And Performance

Coway Airmega 150 uses the try and tested 3-stage HEPA filtration. The outer pre-filter captures PM10 particles including common dust, hair, and lint. The pre-filter is washable and can be reused as it tends to get clogged quickly. With no large particles passing through, the Green True HEPA filter traps 99.999% microscopic particles as small as 0.01 microns in the air including mold, pollen, mildew, pet dander, germs, bacteria, and viruses. The deodorization filter neutralizes 99.99% of odors, cigarette smoke, food smells, musty mold, volatile organic compounds, and other harmful gases e.g. pesticides, car fuel, wood fire. Clean air will then be circulated out at the front leaving only breathable fresh air to enjoy. Perfect for asthmatic, hypersensitive, or sick persons with a compromised immune system.

Noise And Energy Usage

Coway Airmega 150 noise level
Noise level
22 - 52 dB
Coway Airmega 150 power consumption
Power consumption
6 -57 W
Whisper-quiet operation is always a forte with Coway Airmega and the same applies here. You can use it during work, sleep, or even during yoga that needs absolute tranquility. Power consumption is equally good that uses less than 60 watts when running at max speed. Eco mode will activate automatically that stops the motor fan from spinning after 10 minutes of good air quality. Coway Airmega 150 air purifier is designed to run 24/ 7 at maximum air cleaning efficiency even after years of ownership.
Noise TypeDecibels
Coway Airmega 15022 - 52 dB
Breathing10 dB
Rustling leaves20 dB
Whispering/ Quiet library30 dB
Light rainfall40-50 dB
Conversation50-60 dB
Vacuum cleaner/ Hair dryer/ Washing machine65-80 dB
City traffic80-90 dB

Pricing And Maintainence Cost

Coway Airmega 150 MRSP/ RSP
+- 189.99
Coway Airmega 150 annual filter replacement cost
Annual Filter Cost
+- 100
^ Replacement filters/ estimated cost
An excellent starter air purifier for those that need clean air with a tight budget. Coway Airmega 150 is our favorite cheap air purifier replacing the previous favorite Winix 500-2. It is well-made, well-featured, and performs reasonably well. The low 40 dollars annual filter cost is the biggest attraction to me. You never have to worry about the costly filter replacement with Coway Airmega 150 air cleaner. No more succumbing to third-party filters just to save a quick buck. A rare sight in modern devices.
Retailing at 189.99 before discount, you can easily get Coway Airmega 150 for under 150 dollars at Amazon depending on which color you opt for. The white version is often sold the cheapest but do look out for seasonal sales that would really drive the price down. You can try your luck on the Coway Airmega website but the offering is not as attractive as Amazon. Other online retailers like Walmart, Costco may also carry the brand with the usual perks e.g. free shipping, bundled deals, and a 30-days return policy.


  • Under 150 dollars (after discount) for a complete 3-stage HEPA air purifier.
  • True HEPA filter that captures 99.999% biological pollutants including viruses as small as 0.01 microns.
  • Compact body with a thin profile that can fit in any home.
  • Built-in sensor to support autonomous mode and real-time air quality monitor.
  • Dedicated deodorization carbon filter removes toxic smoke and odors that are harmful to our body.
  • Easy to maintain and replace with filter replacement set around 40 dollars annually.
  • 3 years official warranty that covers motors and electronic parts.


  • Limited air coverage. Only suitable for medium room size.
  • No timer, no ionizer, no auto-sleep mode as standard.
Coway Airmega 150

Max Fernandez

A loving father and a dedicated reviewer for airfuji.com with more than 1000 air purifiers under his belt. Max Fernandez is also one of the million patients currently suffering from asthma. Feel free to nudge him if you have any questions.
How Can I Help You Today?

I need air purifier that is to deal with for to be placed in the for with


Other Coway Airmega Air Purifiers