How do I change the filter on Sunbeam Model SCM 2412 humidifier?

Turn the unit off and disconnect from the electrical
outlet.
2. Remove the tank from the housing.
3. Unlock the housing from the base by turning the lock
knob to the unlocked position.
4. Lift the housing straight up and place to the side.
5. Unlock the wick holder from the base by turning the lock
knob to the unlocked position.
6. Remove the wicks from the wick holder.
7. Follow the weekly cleaning instructions.
8. Insert new filters into the wick holder and lock the wick
holder back onto the base.
9. Replace the housing onto the base and lock it into place.
10. Fill the tank and place back into housing.
11. Repeat Operating Instructions.
It will take about 30 minutes for the humidifier to reach

After you change the filter, hold down the fan speed button for at least 3 seconds to turn off the change indicator light. The light will flash then go out.

Nine has only tiny screws