In the kitchen or bathroom it will sanitize and sterilize bad odors and mold while killing the germs or bacteria on the counter top at the same time. This combination of a HEPA filter and air sanitizer/sterilizer is effective in reducing environmental bacteria, viruses, fungus, chemical gases, formaldehyde, smoke particles, mold, mildew, pollen, bad cooking odors, pet smells, tobacco, paint fumes.