YSK not all mattresses (or anything similar) with a zipper are meant to have the outer layer removed and washed.
from /r/YouShouldKnow
YSK並不是所有帶拉鍊的牀墊(或類似的東西)都是要去掉外層並清洗的。
YSK並不是所有帶拉鍊的牀墊(或類似的東西)都是要去掉外層並清洗的。
YSK not all mattresses (or anything similar) with a zipper are meant to have the outer layer removed and washed.
from /r/YouShouldKnow