Direct answer: Health Canada advises users to empty, clean and disinfect portable cool-mist humidifiers regularly and says plug-in electrical products should carry a legitimate Canadian certification mark such as CSA, cUL or cETL where certification is required.Imported official government recordOfficial source factsAuthorityHealth CanadaOfficial documentCool-mist humidifier care and electrical product safety guidanceDate / statusCurrent official consumer guidance; checked 26···