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Maintenance and disposal
3. Wipe the air outlet area with a dry, soft cloth and carefully remove any foreign bodies that may have
gotten into the air outlet.
4. Close the air outlet grille again by completing the steps from before in reverse order.
Clean casing
Whenever necessary, clean the outside of the device in order to prevent dust from collecting.
1. Switch off and unplug the device from the socket.
Do not touch the plug or the device with damp or wet hands. Otherwise, there is a threat of electric
shock.
2. Gently wipe the surface of the device with a damp cloth.
Clean pre-filter
Every two months, clean the pre-filter in order to extend the filter life. If the air purifier is used in a dusty
environment, the pre-filter may need to be cleaned more often.
1. Switch off and unplug the device from the socket.
Do not touch the plug or the device with damp or wet hands. Otherwise, there is a threat of electric
shock.
Wear gloves and a mask! Otherwise, there is a risk of exposure to contamination, viruses,
bacteria and similar potential hazards.
2. Open the two side plates (close by air inlets) and take out the pre-filters as shown in chapter Installation.
3. Clean the surface of the pre-filters with a vacuum cleaner running at minimum power. If necessary, use
some water to clean the pre-filter more thoroughly.
4. Let the pre-filters dry thoroughly.
5. Put the dry filters back into the casing and close the side plates as shown in the chapter Installation.
Clean particle sensor
Every two months, clean the particle sensor to prevent clogging. If the air purifier is used in a dusty environment,
the particle sensor may need to be cleaned more often.
1. Switch off and unplug the device from the socket.
Do not touch the plug or the device with damp or wet hands. Otherwise, there is a threat of electric
shock.
2. The particle sensor is located on the back of the device, as illustrated below. Remove the sensor cover by
putting your finger into the small hollow and pulling forward.
3. Now use a dry cotton swab to clean the exposed particle sensor area.
12
Manual CAS 800
EN
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