Coway AP-1008DH Manual page 18

CLEAnInG METhoD
- Always unplug the product before cleaning the filter.
- The pre-filter is reusable by removing dust or cleaning it with water.
- If the pre-filter is not cleaned for a long time, the product performance may deteriorate.
Tips
- The HEPA filter are not reusable with cleaning. Never clean them with water.
■ Cleaning the pre-filter (every 2 ~ 4 weeks)
1. Open the front cover by pulling out
the end part above the air inlet.
2. Take out the pre-filter by pulling out on the handles.
∗ To prevent dust from falling off, remove the filter carefully without exerting a shock.
3. Clean the pre-filer with a vacuum cleaner or with water depending
on the level of contamination.
4. Install the pre-filter after removing the moisture completely.
Fit the front cover back to the product.
∗ When refitting the pre-filter to the product, fit it in the hook correctly.