The GermGuardianUV-CGG1000/1100 Air Sanitizer ReplacementBulb uses a replac...The GermGuardian UV-C GG1000/1100 Air Sanitizer Replacement Bulb uses a replaceable 3.5W UV-C bulb to eliminate 99% of targeted airborne bacteria. The 3.5W UV-C bulb fits into all GG1000 models. | Guardian Technologies GermGuardian UV-C GG1000/1100 Air...more