... cigarette smoke, pet dander, pollen, mold spores, viruses, and bacteria from the air Description: Negative ion generating technology Product dimension ... smoke, pet dander, pollen, mold spores, viruses, and bacteria from the air.Negative ions have long been attributed to ... cigarette smoke, pet dander, pollen, mold spores, viruses and bacteria from the air. Negative ions have long been attributed ...