20 14 how many days is it foggy in Wu Hanyou?

Wu Hanyou has 187 days in foggy weather, in other words, in Wuhan, you can breathe foggy air only for half a year. In order to prevent smog, I chose the mask Puweixin imported from the United States. This is a disposable mask, the protection efficiency is over 99%, and it has no odor when worn. It is also very comfortable to wear and will not cause pressure on the face. If you wear glasses, this mask can also prevent glasses from fogging. You can buy it on JD.COM.