When you do the sports activity, the body consumes a lot of oxygen.

The smooth air circulation is an essential element of that.

Lack of fresh air in the body causes a lot of physical exhaustion phenomena (e.g. reduced stamina, etc.).

Especially, if the brain is starved for oxygen, human does not make the right decision and have the good judgment. This can cause a dangerous situation.

ACS, one of the core technologies of Dougler, is an air circulation technique which adopted as a basic principle the atmospheric difference of the nature.

 It supplies fresh air to the body by circulating it through two internal air circulation structures.

Dougler’s ACS Technology maintains the best condition by circulating the clear, fresh air.