How to clean mirrors that after cleaning have a "foggy" coat.

Good old vinegar and water work well

Vinegar with water mix wiped with newspaper will for sure help

When you wipe the glass down with whatever vinegar solution you choose to use, make sure you are using a clean soft cloth, lint-free (non fuzzy and no fraying edges) that has not been rinsed with fabric softener.

The greater the % of cotton in the cloth the less slippery the cloth should feel when moving it across the glass. Generally I have found that polyester fabric does not work well at all for cleaning mirrors.

Vinegar and water wiped down with newspaper

I would use Young Living's Thieves cleaner

Hello Joye, you have a bit of build up - just give it a cleaning with 1:1 vinegar and water, then dry with newspaper to remove the film.

Not sure what Invisible Glass is, but try vinegar.

My hubby brought a can of what they used to clean the windows at work home with him.

The stuff is expensive but man it is amazing. Called Zep 40. It is a non streaking non and for non conductive surfaces.

Mix one-part vinegar with four parts water and pour it into the spray bottle. Spray the solution onto the cotton cloth or directly onto the mirror. Before the spray dries, wipe the mirror from side to side or up and down with the cotton cloth. Never wipe the mirror in circles.