Used from baby to 2 years old. All covers have been cleaned at home. The main body has also been wiped with wet wipes and alcohol, but since I am a amateur, there may be oversights. The baby seat was used only once for a few hours (it can be used from newborns). There are no noticeable stains, but some of the stickers on the sides are peeling off, so please purchase only if you understand this.