To ensure that your mirror stays in premium condition we recommend the following cleaning practices:
The safest cleaner for a mirror is clean, warm water used with a soft, grit-free cloth. Never use cleaners with acid, alkaline or ammonia bases. These cleaners will attack the edges and backing of the mirror causing blackened areas.
Never spray any glass cleaner directly onto a mirror. Instead, apply the cleaner to a soft cloth and then wipe the mirror.
Good ventilation will keep a mirror from “sweating” and creating condensing liquids which can, over time, be corrosive and cause damage.