The best way to take care of your interior mounted Tableaux Decorative Grilles and keep them clean is to use a vacuum cleaner with a brush attachment for removing dust.
If additional cleaning is required, try gently rinsing with plain water.
If not successful with water alone, clean with a sponge or a soft brush dipped in a mixture of soapy water and a mild detergent. Be sure to dilute your mixture significantly to avoid fading the finish colors. Rinse with plain water to remove excess detergent.
Decorative Grilles mounted on the exterior can simply be hosed off with plain water using moderate pressure.
Notes
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Architectural Panels are an openwork architectural art form consisting of design patterns deliberately crafted by cutting openings into various material substrates.