Levoit air purifier clean sensor

Every 3 months, or when the air quality ring stays red. More often in a dusty environment.

Steps

1. Unplug the air purifier.
2. Place the end of a vacuum cleaner over the sensor openings.
3. Run the vacuum for at least 10 seconds to clear the dust.

Source: Care & Maintenance (cont.) Source: Care & Maintenance (cont.), p. 14

Used for

• Air quality indicator always stays red

Other Core 300S procedures

• How to reset the Check Filter IndicatorAfter replacing the filter while the indicator is lit, or after replacing it before the indicator lit.
• 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.

Sources

1. 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.

Applies to

Core 300S (variant Core 300S-P). United States.

Source

User Manual, Core 300S series and Core 300S-P series smart air purifier, HEAPAPLVSUS0073A revision A2-240918

Last verified

13 November 2026

Handbook

Levoit Core 300S smart air purifier in Air purifiers; all Levoit handbooks