Clean your air without spending a fortune: I discover that this Coway air purifiers tremendous filtering is well worth its low price as long as you dont mind its lack of smarts

Date:
Fri, 19 Jun 2026 09:25:30 +0000

Description:
Small, affordable and surprisingly powerful, but a few budget compromises
hold it back.

FULL STORY ======================================================================Coway Airmega 100: one-minute review The Coway Airmega 100 is a small, cylindrical air purifier. It's designed for rooms up to around 63 square meters, packing an impressive Clean Air Delivery Rate (CADR) of 244 cubic meters per hour and a three-stage filtration system (pre-filter, True HEPA and deodorization filter).

Design-wise, it's a compact white cylinder that's light enough to carry one-handed and small enough to sit on a desk or tuck into a corner. The touch controls on top are simple and intuitive, with an air-quality indicator ring that shifts color based on what it detects. Performance is where this
purifier really shines, though. It's remarkably quiet even for one of the
best air purifiers , especially in sleep mode where it drops to just 20 dB, and the auto mode does a good job of ramping up when it detects something in the air. There was also a noticeable reduction in surface dust after a few days of running it, and cooking smells triggered the sensor quickly. While it wont eradicate stronger smells completely as a purifier with pellet-based carbon filters would, it still performs brilliantly when it comes to everyday dust, pollen and pet dander. Latest Videos From Watch full video here:

As youd expect, there are some downsides, though, such as a lack of any Wi-Fi connectivity or app control. A quick look at the Amazon reviews will
highlight a number of reports of replacement filters being hard to source in the UK, and while build quality is perfectly fine, it does feel a bit budget in places. Nevertheless, at around 110 / $84 on sale, it represents exceptional bang for your buck. (Image credit: Future) Coway Airmega 100 at Amazon for 89.99 Coway Airmega 100 review: Specs Swipe to scroll horizontally

Category

Specification

Price

$129.99 / 99.99

Dimensions

8.7 x 15.6 x 8.7 inches / 220 x 395 x 220m

Weight

6.6 lbs / 3.0kg

Room coverage

810 sq ft / 75 sq m

Fan speeds

4 stages (Sleep, 1, 2, 3)

Oscillation

No

Filtration

3-stage True HEPA filtration

Filters

Inseparable 3-in-1 filter (Vacuumable Pre-Filter, True HEPA Filter, Deodorization Filter)

Stated filter replacement cycle

Up to 12 months

Controls

On-device touch controls (Auto mode, Fan speed, Timer, Light, Filter reset)

Additional features

Real-time PM2.5 particle sensor, 3-color LED air quality indicator,
360-degree air intake, soothing night light, timer (1, 2, 4, 8 hours) (Image credit: Future) Coway Airmega 100 review: Price and release date Available
now List price: 109.99 / $83.99 / AU$199 The Coway Airmega 100 is available
to buy now in the UK, US and Australia. It sits at the affordable end of the air purifier market, and even at its full UK RRP of 149.99 / $129.99 /
AU$199, it undercuts most comparable models from Philips, Blueair and Levoit, and it's a fraction of what you'd pay for anything from Dyson . At the time
of writing, the unit can be picked up direct from Coway for a sale price of $83.99 / 109.99.

Replacement filters cost a very reasonable 27.99 / $39.99 / AU$59, especially compared to the 69.99 you'll pay for the larger Airmega 350's filters. Coway says they should last around 12 months, though in dustier environments you
may need to swap them more often.

One thing to flag: a few buyers have reported difficulty finding genuine replacement filters on Coway's UK site, with stock appearing to come and go. Filters are available on Amazon, but some buyers have reported sketchy availability from Coways official web store, so it's worth keeping an eye on this if you're planning to keep this long-term. Get daily insight,
inspiration and deals in your inbox Sign up for breaking news, reviews, opinion, top tech deals, and more. Contact me with news and offers from other Future brands Receive email from us on behalf of our trusted partners or sponsors By submitting your information you agree to the Terms & Conditions and Privacy Policy and are aged 16 or over.

Running costs are minimal too. With a 25W motor, you're looking at pennies
per day even if you leave it running around the clock. Value score: 4.5 / 5 (Image credit: Future) Coway Airmega 100 review: Design Compact and minimal, fits anywhere Touch controls are simple and intuitive Feels a little cheap, and there are no carry handles The Airmega 100 is essentially a small, white cylinder measuring just 8.66 inches / 220mm across and about 15.75 inches / 400mm tall. This compact size means it can easily sit on a bedside table, a desk, or the floor in a corner and, at 6.61 pounds / 3kg, it's light enough
to pick up and move around to put wherever you need it with ease. The minimal white finish might leave a bit to be desired, but its nice enough and will blend in with pretty much any room without drawing attention to itself.

As for the touch panel on top, this is a straightforward design that makes it super easy to navigate, sporting haptic buttons for fan speed, sleep mode, timer, light on/off and a control panel lock. Wrapping around the 360-degree fan grille is an air quality indicator ring that changes color from blue (clean) through green and yellow to red (polluted), giving you a quick visual check on air quality status without needing to press anything. I found the whole thing easy to get to grips with, no manual needed. (Image credit: Future) If I had to pull out a negative, Id say build quality is where the Airmega 100 lets itself down a bit. It looks nice enough from a distance, but up close the plastic feels a bit on the cheap side. It's not flimsy or poorly made; it just doesn't have that reassuring heft you get from pricier models. There are also no carry handles, which is a minor gripe given how light it
is, but still feels like something Coway could have added without much
effort.

Air is drawn in through inlets at the bottom and expelled upwards through the top grilles, so, like its bigger sibling the Airmega 350, don't expect it to double up as a fan. This device is for cleaning air, not cooling you down. Design score: 4 / 5 (Image credit: Future) Coway Airmega 100 review: Features and performance Impressively quiet, especially in sleep mode Auto mode reacts quickly to changes in air quality Carbon filter won't tackle strong cooking smells For such a compact air purifier at such a low price, the Airmega 100 performs surprisingly well. The three-stage filter (pre-filter, True HEPA and deodorization) does a top job of capturing dust, pollen and pet dander, and I noticed a genuine drop in surface dust after just a few days of running it in my open-plan living and dining room.

The auto mode is the standout feature here, though. With a built-in PM2.5 sensor, its able to monitor air quality in real time and adjust fan speed accordingly. Start cooking, spray some deodorant or disturb some dust, and
the ring will shift color before the fan kicks in. Then, once the air clears, itll settle back down. It's properly hands-off, and works really well.

Noise levels are also excellent. In sleep mode, the Airmega 100 drops to a claimed 20 dB, and I can confirm it's near-silent. I ran it overnight in the same room and totally forgot it was there. Even on its highest speed, it's
not what I'd call loud, topping out at around 52 dB that's roughly
dishwasher territory, so for a bedroom or home office it's ideal. Image 1 of
3 (Image credit: Future) (Image credit: Future) (Image credit: Future) The
one area where the filtration falls a bit short is when it comes to strong odors. The deodorization filter uses a carbon-coated fiber rather than the pellet-based activated carbon you'll find in pricier models. While it handles light smells and general stuffiness fine, don't expect it to neutralize
strong cooking smells or smoke from a burnt pan. For everyday dust, allergens and general air quality improvement, though, it's perfectly capable.

As with its older brother, the Coway Airmega 350 , there's no Wi-Fi connectivity, app nor smart-home integration on the Airmega 100. This means you can't check air quality stats remotely or control it from your phone. That's not ideal, although unlike on the pricier models it doesnt feel as much of a missing feature here. Still, it still feels like something Coway should be thinking about, as a basic app showing air quality trends and
filter life isnt exactly a cutting edge feature these days.

Nevertheless, the purifiers timer options (you can choose between one, two, four or eight hours) and the control panel lock are both pretty useful additions. And there's a mood-light feature that provides a soft glow for bedroom use, which is a nice touch. Features & performance score: 4 / 5
(Image credit: Future) Should I buy the Coway Airmega 100? You want a quiet, compact purifier for a bedroom or office The Airmega 100 is one of the quietest small purifiers around, and it's small enough to go practically anywhere. You're on a budget At around 110 / $84 on sale, with cheap filters and minimal running costs, it's really good value. You have allergies or pets ECARF-certified and ozone-free, with solid HEPA filtration for dust, pollen and dander. Don't buy it if You need to tackle strong odors The carbon filter is fine for light smells, but won't cut it for serious cooking or smoke. You want smart features Theres no app, no Wi-Fi, and no voice control, so if remote access matters to you, look elsewhere. You're worried about long-term filter availability Some UK buyers have reported difficulty sourcing genuine replacements, which is worth keeping in mind. Coway Airmega 100 review: Also consider Swipe to scroll horizontally

Category

Coway Airmega 100

Coway Airmega 350

Levoit Core 300S

Price

$129.99 / 99.99

$329.00 / 259.99

$149.99 / 127.48

Dimensions

8.7 x 15.6 x 8.7 inches / 220 x 395 x 220 mm

12 x 23 x 12 inches / 305 x 590 x 305mm

8.7 x 14.2 x 8.7 inches / 220 x 360 x 220mm

Weight

6.6 lbs / 3.0 kg

17.19 lbs / 7.8 kg

5.95 lbs / 2.7 kg

Room coverage

810 sq ft / 75 sq m

2,640 sq ft / 245 sq m

1,051 sq ft / 98 sq m

Fan speeds

4 stages (Sleep, 1, 2, 3)

5 stages (Sleep, 1, 2, 3, Turbo)

4 stages (Sleep, 1, 2, 3)

Oscillation

No

No

No

Filtration

3-stage True HEPA

3-stage HyperVortex True HEPA

3-stage True HEPA

Filters

3-in-1 integrated filter (Pre-Filter, True HEPA, Deodorization)

3-in-1 custom side-load filter (Pre-filter, True HEPA, Activated Carbon)

3-in-1 cylindrical filter (Pre-filter, True HEPA, High-Efficiency Carbon)

Stated filter replacement cycle

Up to 12 months

Up to 12 months

6 to 8 months

Controls

On-device touch controls

On-device touch controls

On-device touch controls, VeSync App, Voice control (Alexa/Google Assistant)

Additional features

Real-time PM2.5 particle sensor, 3-color LED indicator, 360 air intake, night light, timer

Real-time particle sensor (up to PM10), 4-color LED indicator, Eco mode, Mute mode, Light sensor, Control lock, side-loading filter hatch

AirSight Plus laser particle sensor, 4-color LED indicator ring, Auto mode, VeSync app scheduling, voice control, display lock, sleep mode Coway Airmega 350 If you need to cover a much larger space, Coway's own 350 offers significantly more power and coverage. It shares the same lack of smart connectivity, but the filtration performance is top notch. Read our full
Coway Airmega 350 review here. Levoit Core 300S A popular compact alternative that has a similar RRP to the Airmega 100. It also boasts built in Wi-Fi and Alexa support, filling the smart features gap the Coway lacks. Read our full Levoit Core 300S review here. (Image credit: Future) How I tested the Coway Airmega 100 I used the Coway Airmega 100 for several weeks across different spaces in my home, from my home office to open plan living room and dining area. I tested all fan speeds and modes, monitored the sensor's reaction to cooking, dust and general household air, and assessed the build quality,
noise levels, filter access and overall usability throughout. First reviewed: May 2026 Read more about how we test Coway Airmega 100: Price Comparison
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