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Turn off the plasma display and let it cool before cleaning it. Wipe the screen with a soft, lint-free cloth to remove fingerprints and smudges. Spray an alcohol-based screen cleaner onto a clean cloth. Swab the screen with the dampened cloth to remove stubborn dust. Dry the screen with a separate clean, dry cloth.
Since plasma TVs use more power and generate more heat than LCD TVs, it is best to turn the screen off before cleaning. Let the screen remain off for 15-20 minutes. This will allow ample time for the unit to cool before you clean the screen.  Failure to do this may cause your cleaning solution to evaporate before it has had enough time to remove any dust, dirt, or contaminants on your screen. You could use a microfiber cleaning cloth or a soft, clean cotton rag. Rub it gently in a circular motion across the TV screen to remove all signs of dust. This should be enough to remove most dirt and dust from your TV screen.  Avoid rubbing the screen with wood-based products (e.g., paper towels, toilet paper, tissues) because they can scratch the screen. If stubborn dirty spots persist after wiping the screen dry, you can dampen your cleaning cloth. Spray 2-3 squirts of the cleaning solution on the soft cloth. Do not spray the cleaning product directly onto the screen, or it may saturate the surface and damage the screen. Don’t use a stronger chemical cleaner (e.g., ammonia or benzene), as these substances will cloud and dim the displayed image. You can find isopropyl-alcohol based screen cleaners at most PC-supply or electronics stores. Try to find a cleaner designed to clean television or computer screens. Once your cloth is dampened, use it to wipe away any hard-to-clean fingerprints or smudges on the surface of your plasma screen. If the moistened cloth is not cleaning sufficiently, you can spray additional small amounts of cleaner on the cloth. However, don’t saturate the screen with liquid cleaner or you may damage the plasma.  At no time do you want the cloth wet enough that it causes the solution to drip or run down the screen! After wiping the screen clean with a damp cloth, run a dry cloth over it to soak up any residual moisture. This will prevent your plasma screen from being damaged by the liquid. Once the screen is dry, you can plug the set back in and resume watching TV.