Coway

Coway is a home wellness company founded in Korea in 1989, whose stated purpose is to help people live happier, healthier lives by cleaning the air they breathe, the water they drink and the hygiene of their bathrooms. Its products reach the US through Cowaymega, under the Airmega, Bidetmega and Aquamega names.

The range covers air purifiers such as the Airmega Mighty and ProX, bidet toilet seats, water purifiers and the filter subscriptions that keep them running. Coway runs an environmental technology R&D centre with 427 researchers and reports more than 6,226 intellectual property rights, including 8,285 patents tied to water and air, while its Airmega Mighty has been a Wirecutter best pick every year from 2015 to 2025.