Levoit core 300s reset filter
After replacing the filter while the indicator is lit, or after replacing it before the indicator lit.
Steps
- Replace the filter if the indicator is lit. See Replace the filter.
- Turn on the air purifier.
- Press and hold the Sleep Mode button for 3 seconds.
- Check that the indicator turns off.
If the filter was replaced before the indicator lit: press and hold the Sleep Mode button for 3 seconds. The Check Filter Indicator flashes for 3 seconds and then turns off.
Source: Care & Maintenance; Controls Source: Care & Maintenance; Controls, p. 13
Used for
- Check Filter Indicator: A reminder to check the filter. It lights within 6 to 8 months of use, sooner with frequent use and later with light use.
Other Core 300S procedures
- How to replace the filterWhen the Check Filter Indicator lights and the filter is clogged, noisy or loses airflow, or every 6 to 8 months.
- How to clean the pre-filterEvery 2 to 4 weeks.
- How to clean the AirSight Plus Laser Dust SensorEvery 3 months, or when the air quality ring stays red. More often in a dusty environment.
Sources
- User Manual, Core 300S series and Core 300S-P series smart air purifier. Arovast Corporation. Document HEAPAPLVSUS0073A, revision A2-240918, 24 pages, en-US. levoit.com (PDF). Listed on the manufacturer's support page. Retrieved 13 November 2026.
Page numbers are the numbers printed in the manual. Where this page and the manual differ, follow the manual.