How often is it appropriate to wash down jackets in winter, and how to clean them more conveniently and quickly?

It is best to wash down jackets once or twice in winter. Because after all, clothes are worn on the body, and it is mainly him in winter. If you don't wash it for a long time, it will smell of sweat and be dirty, which makes people feel uncomfortable. In fact, sometimes, cleaning is very simple. We can send it to dry cleaning, or get detergent in that canteen and wash it in a dirty place. Uh, just wipe it with water. You don't have to wash it all the time. If you keep washing, it's easy to get fuzzy. And if you wash it all the time, the hair inside the down jacket will become thinner and uneven because of the total washing. Some places are hairy and some places are hairy, so it can't resist the cold. If you think like me, adopt!