Coway Airmega 350

Its CADR is not known yet, so it is not in our ranking.

Which robot is right for your home? Find out in 7 questions →

Before you buy, compare it with 2 recommended alternatives

No shop here sells this model today, so beside it the highest-scored model for the same room size that one does, and the cheapest of the top 10.

Green is the best of these 3, also when they share the lead.

Price and ranking
	This model Coway Airmega 350	Cheapest of the top 10 Clean Air Optima CA-503 Compact Best on 2 facts	Highest score here AEG APO50371DG Best on 1 fact
Lowest price	–	132 €OTTO best	386 €EURONICS
Score	not in our ranking		best
Rank	–	rank 1 of 1 for small rooms	rank 1 of 3 for medium rooms
Customer rating	–	–	–
Room size
Room size	open-plan spacesup to 185 m²	small roomsup to 30 m²	medium roomsup to 17 m²
Size, noise and age
Height lower is better	59.1 cm	27.4 cm best	40.5 cm
On the market since	July 2025	August 2023	–

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Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.

Coway Airmega 350 specifications

The numbers that matter first, then every fact by group. As published by the maker or the shop we read it from.

Coway · on the market since July 2025

Clean air delivery rate (CADR)714 m³/h

Room size we compare on60 m²

Noise at the lowest speed22 dB

Filter life12 months

Power at the highest speed62 W

Consumables: The filter lasts about 12 months.

Cleaning performance 4 facts

Clean air delivery rate (CADR) How much clean air the purifier delivers an hour, measured with smoke, dust and pollen. A higher figure cleans a bigger room or the same room faster.: 714 m³/h
CADR measured to The test the CADR comes from. AHAM AC-1 and the DOE test are independent and comparable. A maker's own test is not.: Not stated
Room size we compare on The room size where the purifier changes the air 4.8 times an hour under a 2.5 m ceiling, worked out from its CADR. We use it so every model is compared on the same rule.: 60 m²
Room size the maker claims The room size the maker states. Makers use different rules, so we show it but never rank on it.: 185 m²

Filter 1 fact

Activated carbon filter A filter of activated carbon that takes out smells and some gases. It does not catch particles.: yes

Running costs 1 fact

Filter life How long the maker says a filter lasts, in months of normal use. A filter that is spent cleans less.: 12 months

Noise and power 3 facts

Noise at the lowest speed The sound level at the lowest speed, as the maker measures it.: 22 dB
Noise at the highest speed The sound level at the highest speed, as the maker measures it.: 55 dB
Power at the highest speed The power the purifier draws at its highest speed.: 62 W

Air quality sensing 1 fact

Automatic mode The fan speed follows the air quality the sensor reads.: yes

Smart features and warranty 1 fact

Matter
Matter is the standard that lets devices from different makers work together. With it you can run the robot outside the maker’s own app. On this model: Assumed, not a stated fact: the maker's full specification does not name it, so we take it as no.: no (assumed)

Build 5 facts

Shape: Floor box
Height How tall the purifier is. It decides whether it fits on a shelf or under a window sill.: 59.1 cm
Width: 305 mm
Depth: 305 mm
Weight What the purifier weighs. It counts most if you move it from room to room.: 7.8 kg

Warranty and certification 1 fact

Warranty The warranty the maker gives in Germany. Consumer law here stands apart from it and can last longer.: 2 years

Sources: coway.nl

Frequently asked questions about the Coway Airmega 350

What size of room is the Coway Airmega 350 for?

The Coway Airmega 350 is sized for a room of about 60 m², the room size we compare it on. Its clean air delivery rate (CADR) is 714 m³/h.

How often does the Coway Airmega 350 need a new filter?

The maker gives the filter a life of 12 months.

How loud is the Coway Airmega 350?

The maker states 21.6 dB at the lowest speed and 54.7 dB at the highest.

The maker

Coway

Coway began in Korea in 1989 and describes itself as a global company with three decades focused on health. In the United States it sells Airmega air purifiers, Bidetmega bidet toilet seats and Aquamega water purifiers.