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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.