¡¡HEPA Filtration: this smart item also is equipped with Air Ventilation Filtration System. With 3-ply high-density fiber HEPA filtration network imported from U.S.A., it can fast filter and eliminate bacteria, floating air dust and stink as a whole .For a half-opened space of 30 square meters, the stuff air can be cleaned up only by half an hour.

¡¡World ionizer checker: owing to ionizer featuring smellless and colorless, World also made for you an ionizer checker as an accessory to ionizer air cleaner so that you check whether it is working or not when using it and how dense the ionizer be at any time.