Puwin / Air Purifier

Puwin is a window-type air purifier that allows ventilation without opening windows on days of high fine dust.

Closing windows and operating air purifiers as usual reduces the concentration of fine dust, but increases the concentration of carbon dioxide, causing symptoms of headaches, dizziness and sleepiness.
To solve this problem, We figured out how to purify the outside air and let it flow into the room to reduce the indoor CO2 concentration.

Puwin is consist of external Puwin with self-powered solar panel and inside Puwin to filter air.