... smoking Applications: Shopping malls, supermarkets, restaurants Negative ion lamp,anion air-purifying lampANION AIR-PURIFYING LAMPSpecifications:Optional ... , supermarkets, restaurants, shops, hotels etc. Negative ion -----Vitamin in the airIon is produced when electron ... and peoples health.Place studied Anion density(N-ion/cm3) Research resultForest ,waterfall 100000-500000Immune naturallyMcuntain, ...