When we are choosing air conditioners, most of us struggle with whether we should buy an air conditioner with a cooling and heating function or whether just cooling is enough.
Someone says that a cooling and heating air conditioner costs much and is seldomly used in winter, so it is...
With the hot temperature in summer, many people usually sleep with the air conditioners turned on during the night to gain a cool and pleasant sleeping environment. But people also worried that it would harm our health with an air conditioner on during the night. Now we are here to talk about this q...