Before your stay, environments are constantly exposed to 0.04 ppm of ozone for at least 24 hours, with Atomic3 technology automatically measuring and calibrating the ozone released into the environment. The pool water, in addition to being chlorinated, is treated with ozone to guarantee absolute healthiness. Water is bacteriologically pure. The water from the washing machine and the washing machine itself is also treated with ozone during each wash. Your health is important to us.