What country is Coway from?
Is Coway a Korean brand?
Coway General Information
Coway is a Korea-based company engaged in the manufacturing of water filtration appliances, air purifiers and bidets.
Are Coway air purifiers good?
- Features - In terms of actual cleaning ability of PM2. 5 pollutants, the Coway seems to work the best, since it has a 3 stage filtration. Philips has this too, but I am not sure it cleans as good (it's about 20% smaller), while Mi 2S just has a circular HEPA filter and no pre-filters as far as I know.
When should I change my Coway filter?
Advanced air purifiers like the Coway Airmega will notify you when to clean or change any of your air filters. Indicators will light up, depending on the action needed. Carbon filters need to be replaced about once every six months, and True HEPA filters about once a year, depending on how much air they have processed.