EntityQ252632· pop 25· linked from 344 articlesair ioniserSign in to savedevice that uses high voltage to ionise air moleculesConnectionsRadiant heating and cooling systemsEntityrefrigeratorEntityionEntityozoneEntitystandard temperature and pressureEntitycompressorEntityexhaust hoodEntitybuilding automationEntityconvection ovenEntityductEntityheat recovery ventilationEntityJapanCountrybacteriaEntitymoleculeEntityelectronEntityinfluenzaEntitythermodynamicsEntityatmosphere of EarthEntityultraviolet radiationEntityelectric chargeEntityCategories20th-century inventionsHome appliancesIndoor air pollutionMedical equipmentSoviet inventions