Some people wish to bring more fresh air into their house to stay refreshed. However, they also need to use the air conditioner. So, how do you ventilate an air-conditioned room? To ventilate an...
Some people wish to bring more fresh air into their house to stay refreshed. However, they also need to use the air conditioner. So, how do you ventilate an air-conditioned room? To ventilate an...