Dust or fine particles blow out from the exhaust vent during use, causing sneezing or visible dust clouds.

Safety: Remove the battery before accessing filters.

• 1. Check HEPA filter presence: Open the exhaust filter cover and confirm that the HEPA filter is installed.
• 2. Inspect filter condition: Look for tears, holes, or deformation in the filter media. Replace if damaged.
• 3. Inspect filter frame and cover: Ensure the plastic frame of the filter and the cover are not cracked or warped. Replace if they do not seal properly.
• 4. Install correctly: Reinstall the HEPA filter in the correct orientation, making sure it is fully seated and the cover latches securely.
• 5. Avoid washing non-washable HEPA: Only wash HEPA filters if Siemens explicitly states they are washable. Otherwise, replace when dirty.

Proper exhaust filtration is important for indoor air quality, especially for allergy sufferers.