When "220V AC Cooling Fan" work, since there is a current "220V AC Cooling Fan" coil wire is resistance, it will inevitably produce heat outward heat, so the temperature will rise. But why people will feel cool it? Because the body's surface have a lot of sweat, When fans work together, indoor air can flow together, so we can promote the rapid evaporation of sweat, combined with "evaporative need to absorb a lot of heat", "220V AC Cooling Fan" So people will feel cool.