Optional fan subtle

In the eyes of many bath ventilator fan to buy is not high-tech living, "can rotate and durable on the line," presumably most people buy a first idea, in fact, introduced by the previous we can see, Fan in fact occupied by a product category rich market, so it is more elegant to buy one thing, we should go to choose their own fan products according to their different needs, and different types of bathroom window fans itself will have a lot of Product details need attention.