Coway AP-1512HH how to replace the filters

When the Odor LED or HEPA LED lights, or at the replacement cycles: deodorization filter every 6 months, True HEPA filter every year.

Steps

1. Unplug the air purifier.
2. Open the front cover by pulling the upper part of it.
3. Take out the filters and remove the plastic bag from each new filter.
4. Install the filters in this order: pre-filter, deodorization filter, True HEPA filter. Check that the front side of each filter faces the correct direction.
5. Push the pre-filter grip in until the pre-filter sits firmly.
6. Close the front cover.
7. Reset the filter replacement indicator. See Reset the filter replacement indicator.

Use original Coway filters.

Source: Before use: filter installation; Filter replacement Source: Before use: filter installation; Filter replacement, pp. 10, 17

Used for

• Filter replacement indicator: A filter has reached its replacement cycle. The Odor LED means the deodorization filter and the HEPA LED means the True HEPA filter. While this indicator is active, the pollution level indicator does not light.
• A bad smell comes out of the air outlet

Other AP-1512HH procedures

• How to reset the filter replacement indicatorAfter replacing the deodorization filter or the True HEPA filter that the Odor LED or HEPA LED named.
• How to reset a filter cycle before it endsWhen a filter was replaced before its replacement cycle was reached.
• How to clean the pre-filterEvery 2 to 4 weeks.
• How to clean the air quality sensorEvery 2 months, and more often in a dusty room. Without regular cleaning the sensor performance deteriorates.
• How to adjust the air quality sensor sensitivityWhen the pollution level stays at the highest level after 2 hours of operation, or at the lowest level for more than 1 hour while the air does not seem clean.

Sources

1. Coway Air Purifier AP-1512HH & AP-1512HH(W) user's manual (English, French, Spanish). Coway. Document AP-1512HH_AP-1512HH_W__MANUAL_US__COWAY_009__19.07.17, revision 009, 2019-07-17, 21 pages, en-US. cowaymega.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

AP-1512HH (variant AP-1512HH(W)). United States.

Source

Coway Air Purifier AP-1512HH & AP-1512HH(W) user's manual (English, French, Spanish), AP-1512HH_AP-1512HH_W__MANUAL_US__COWAY_009__19.07.17 revision 009, 2019-07-17

Last verified

13 November 2026

Handbook

Coway Airmega Mighty AP-1512HH air purifier in Air purifiers; all Coway handbooks