Proper maintenance is very necessary for everything.
We at Natural Ruchem India (www.naturalruchemindia.com) have successfully developed an Eco-Friendly, Bio-Degradable & Water Based Solution under the Brand name RU-DM CLEANO for cleaning of Glass and Mirrors efficiently. It cleans stains / marks from glasses very easily by just spraying and wiping with clean cloth / sponge etc.
It also cleans Mirror absolutely clean without harming the Aluminum or Silver Polish of the Mirror reflecting the original image without harming the Mirror in any way. RU-DM CLEANO has to be sprayed on Mirror and wiped with clean cloth / sponge.