Filter
Top Products
Revision A
GoodKnight 420G - Patient Manual 17
MAINTENANCE AND CLEANING INSTRUCTIONS
In order to ensure that you use your GoodKnight 420G, safely and efficiently, please observe the
maintenance instructions specified below.
GoodKnight 420G
The hard plastic case protecting the internal components of the device does not require any special
maintenance. When it proves necessary, clean the device using a soft cloth dampened with warm
soapy water. Dry the device thoroughly.
WARNINGS
• Always unplug the device before cleaning it.
• Do not use a spray cleaner. This is because residues may lodge in the air outlet, the foam
filter or inside the device. This could cause irritation of the airways due to chemical residues.
• Do not submerge the device in water.
• Do not allow water to run onto the device, or drip into any of its openings.
• Never use the device without verifying that the filter has been installed.
Air inlet filters
Change the filters as soon as they become torn or dirty. (See reference 7 in Figure 4, page 5).
Clean the outer foam filter at least once a week, or more often if necessary, in the following way:
1. Wash the filter with warm soapy water.
2. Rinse thoroughly so as to remove all traces of soap.
3. Dry it by pressing it sandwiched in a absorbant towel.
4. Leave it to dry completely before replacing it.
5. Replace the filter at the back of the device.
The high-efficiency white fabric filter (this optional filter is available separately) cannot be washed, it
must be changed at least once a month, or more often if it is visibly clogged.
WARNING
Never use the
GoodKnight
420G without an air inlet filter.
Hose
Please refer to the instructions for use that were sent to you with the hose.