Model Handbook

Levoit Core 300 airflow is significantly reduced

Cause 1 of 2The filter is still in its plastic packaging, sits wrongly, or the pre-filter is clogged with hair or lint. Source: Troubleshooting, p. 13

First checkCheck that the filter is out of its packaging and properly in place.

Causes and checks

  1. The filter is still in its plastic packaging, sits wrongly, or the pre-filter is clogged with hair or lint. Source: Troubleshooting, p. 13

    1. Check that the filter is out of its packaging and properly in place.
    2. Clean the pre-filter, or replace the filter. See Clean the pre-filter.

  2. The fan speed is low or the purifier has too little clearance. Source: Troubleshooting, p. 13

    1. Tap the Fan Speed button to raise the fan speed.
    2. Leave 15 inches (38 cm) of clearance on all sides of the purifier.

Service

If the checks above do not clear it, contact Levoit Customer Support: 1-888-726-8520, support.levoit.com. United States (Monday to Friday, 9:00 am to 5:00 pm PST/PDT). Source: Customer Support, p. 18

Other Core 300 problems

Sources

  1. User Manual, Core 300 series and Core 300-P series air purifier (Core 300, Core 300-RAC). Arovast Corporation. Document HEAPAPLVNUS0161Y, revision A2-241204, 20 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 300, Core 300-RAC. United States.
Source
User Manual, Core 300 series and Core 300-P series air purifier (Core 300, Core 300-RAC), HEAPAPLVNUS0161Y revision A2-241204
Last verified
Handbook
Levoit Core 300 air purifier in Air purifiers; all Levoit handbooks