It's too hot in Zhengzhou these days, and the cost of air conditioning in my Internet cafe is too high. What equipment and machines can save cost and achieve refrigeration effect?

Air cooler, these problems you mentioned can be solved. A set of ventilation and cooling equipment 100 square meter, one electricity per hour! Internet cafes are generally used now, because the market development methods are different, and remote areas may not be popularized! Taobao Ming (deeply in love with Jane Dozy)