... Clear smoking Applications: Shopping malls, supermarkets, restaurants Negative ion lamp,anion air-purifying lampANION AIR-PURIFYING ... B22Optional Color Temperature: 2,700K/4,100K/6,500K Applications:Shopping malls, supermarkets, restaurants, shops, hotels etc. Negative ... 50000 Insomnia, air-conditioning diseasesFunction of negative ion(anion)The negative ion can effectively activate the oxygen ...