Three-layer HEPA Filter with UV LightThe H13 HEPA filter with three effective filter layers can filter 99.97% of dust, pollen, smell, smoke and pet hair, easily filter particles as small as 0.3 microns. You can also turn on the UV light at the same time to enhance clean and purify your air environment ,create a healthy and fresh live conditions for you. | 3-Fan Speeds and Timer SettingYou can choose 2-level,1-level and sleep mode-level for air purification according to your air environment and your needs. When you need to sleep or prepare to go out, you can use it with timer settings to save power consumption, it can be set at 6/12/24 hours. Don't worry about excessive electricity bills for a long time. | Built-in Reminder to Replace The FilterWhen the filter is being used for 2000 hours ,There will be lots of particles attached to the filter, which will affect the purification effect. At this time, the built-in replacement indicator will display a red light to remind you. After replacing filter, the purifier still maintains efficient air purification, give your quality of life. |