Dust the leaves of your fake tree with a dust cloth, a microfiber cloth or a duster to gently remove fluff and other debris. Dust every couple of weeks to avoid heavy buildup of dirt.
Spray water onto your fake tree to get off dirt that does not come off with a dry cloth. A half-and-half mixture of water and white vinegar may help remove stubborn stains. Wipe the moistened dirt off with a cloth.
If the tree is very dirty, hose it down in the shower or in your driveway with a garden hose. Allow it to air dry in a well-ventilated area.
Remove scuff marks from your fake tree with a microporous cleaning eraser.