1. In case that the veneer surface is stained, it shouldn’t be wiped with clothing because the fiber scarps will be stick to the wood splinter and it shouldn’t be wiped with water as well because it will deepen the stains. The blower should be used to erase the stains. However, in case that the stains are deep, the sandpaper can be used to scrub to get rid of the stains and blow to remove the dust
2. Avoid using the tools in the area that is exposed to the sun because it will decolorize the veneer, else it should be coated with sun protecting coating to prevent the wood from the sunlight
3. Avoid using the tools in the moist area because the veneer will absorb the moist and lead to mold.