One side of the plate gains heat while the other loses it. The hotter side is connected to a heat sink, so it adopts the ambient temperature, as the cooler side drops below the room temperature. Once on, air blows through the Blaux air cooler across the cool side of the plate. This delivers cooler temperatures via the vents and finally to your body. Importantly, Blaux Wearable AC purifies the air using the ionizer and antibacterial filter. There is limited information about how this filter works, but it generally prevents you from contacting pollutants and allergens. The filler can be replaced periodically to achieve the best results. The ionizer, on the other hand, spreads ionized oxygen molecules (ozone) into the air. The molecules attract particles in the air, which stick to them and when they get heavy, fall to the earth.