There are many substances used by infants on the market that belong to PE material, such as crawling mats, baby bottles, etc. Generally, PE material is mostly polyethylene, which is a type of thermoplastic with strong low temperature resistance and impact resistance. Polyethylene is generally divided into linear low-density polyethylene, low-density polyethylene, and high-density Polyethylen, som er lugtfri og ikke-toksisk, har meget lille indflydelse på voksne og forårsager generelt ikke skade på spædbørn ved stuetemperatur .
