The Germ Guardian UV-C Plug-In air sanitizer is the natural safe way to kill germs (Influenza-A, Tuberculosis, Staphylococcus, Streptococcus & more),odors and mold spores without the use of chemicals. Its the same technology hospitals use to sanitize. Its whisper-quiet operation circulates 450 cubic feet of disinfected air every hour back into the room. Proven effective by tests performed by the Harvard School of Public Health. Ideal for any room both at home or at the office. One-year factory warranty.