This is a water circulation device used in beauty salons and spa shops. It circulates water by mixing it with existing aroma oils, various medicines, and clinic products, allowing a small amount of water and medicine to be continuously applied to the scalp and hair, thereby maximizing the efficiency. It is a head spa device that can produce effects.

It is a unique product that can create added value as the spa and aesthetics market is growing globally.

Existing products are of the direct type and cannot be used by mixing with chemicals, but Airapha's Dohi Spa can be used by mixing water and chemicals, so each shop can create and operate a unique manual.