Why does the quilt smell when it is dry? The reason why the quilt smells when it is dry.

1, the source of this odor is ozone. We know that there is cotton in the quilt, and there is a lot of air in the gaps of cotton, and the ultraviolet rays of the sun will change the oxygen in the air in the quilt after a long time of irradiation, and the result of the change is ozone.

2. There is cotton fat in cotton. Cotton fat will also give off an odor after irradiation and heating. When cotton fat is combined with the smell of ozone, we usually call it "the smell of sunshine".