If dirt and dust get inside the box it may damage the device. Clean the box regularly to prevent this.
Procedure
Empty the box.
Remove the NavVis VLX and all the accessories. Put them in a safe place.
Clean the foam.
Use a vacuum cleaner with a head for cleaning upholstery to clean the inside of the box.
Clean the outside of the box.
Wet a clean cloth with a small amount of mildly soapy water. Wipe the outside of the box until it is clean. Rinse with a damp cloth and wipe dry. Do not apply water directly to the outside of the box.
Refill the box.
Return the NavVis VLX and the accessories to the box.