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How often do I need to replace my UV-C bulb?

The following GermGuardian air purifiers and air sanitizers have UV-C bulbs that need to be replaced every 10-12 months depending on use: 

  • AC4825
  • AC5000
  • AC5250
  • AC5300
  • AC5350
  • CDAP5500
  • AC5900
  • AC4700
  • AC4900
  • AC4300
  • CDAP4500
  • AC9200
  • AC5109
  • AC4870
  • GG1000
  • GG1100
  • EV9102
  • GG3000
  • AC4150
  • AC4100

The following GermGuardian air purifiers and air sanitizers are designed to last the lifetime of the product: 

  • AC4020
  • AC3900
  • AC4000
  • LW9
  • LW18

If for some reason the bulb in one of these models is not working, please contact Customer Service.