Before cleaning any lamp shade or fixture, disconnect the power source (turn off installed lights or unplug lamps from power outlets).Dust fixtures lightly every two or three months with a feather or wool duster to keep them clean.
To clean glass shades, apply a household glass cleaner to a soft cloth, and wipe gently. To clean fabric shades, wipe gently with a soft, dry cloth or a feather duster.
For thorough cleaning of crystal chandeliers, individual crystal droplets can be removed. However, make sure you know how your crystal or glass design goes together before you begin cleaning, to avoid problems with reassembling.