A multilayer-type dustproof net with a protective layer bonded to the protective layer by forming a nanofiber layer through electrospinning on the screen layer. Weight method test conducted by the Fiti Testing Research Institute, which conducts quality tests of international standards, confirmed the dust collection efficiency of 86.9% at PM0.0~PM10.

 We optimize electrospinning conditions so that nanofibers are evenly radiated, which increases dust collection efficiency and improves durability. Our products effectively prevent dust such as fine dust and pollen from entering the room, so you can always open windows and ventilate.

Whachang-Clear window-uses the effect called 'The Venturi effect(Bernoulli's principle)'.

It is a transparent rain screen gallery window.

 On rainy days, you can ventilate only the area equipped with a clear window while blocking rainwater by opening the window. Also, on a non-rainy day, you can welcome the cool breeze by opening the window.
It is important to ventilate in the age of fine dust. By opening the window a little, your space will be ventilated and quick by the venturi effect.