Tonatto Apeiron Shanghai is a floral diffuser. Little sticks of rattan or bamboo have been perfected to absorb and diffuse the scents. The intensity of the perfume can be modified by dipping more or less sticks into the scent and also by turning them upside down whenever diffusion seems to lessen. Avoid exposing directly to sources of heat and air conditioners, which can alter the fragrance and accelerate the period of evaporation. Shanghai 200 and 500 ml capsules are sealed with a particular wax, that prevents contact with air and keeps the product safe.