"Cooling Fan" Air conditioning Advantages: can significantly regulate indoor air temperature, and can be adjusted according to different temperatures. Summer air humidity, people feel uncomfortable, furniture, clothing and household appliances easy to damp, air conditioning, humidity in the air can be removed. And the air-conditioning market early, many brands, choose a large room. Disadvantages: bulky, expensive, and because the interior seal, ventilation after use, indoor air temperature is uneven, easily gives rise to discomfort, air conditioning and susceptible to disease. At the same time power is large, large power consumption, consumers are difficult to accept.