Steam Water fed pole

So a friend of mine mentioned this to me I have never heard of it but using pure steam to clean windows. Anyone heard of this before? I googled it and didn’t find anything specifically on this process.

Steam is distilled water. Close but not as pure as DI water. There maybe a situation that it would be an alternative. You could offer to steam cleaning curtains.

Steam up your windows & mirror. See how they end up.

^ in your bathrom

I thought seemed strange

To realistically clean a dirty window with a steam application you’d need enough steam to rinse and I can’t picture that happening.

There are steam mops for windows they seems more as something a housewife would use rather than what a professional would use.
here is a link: Optim Plus Steam Window Cleaner | Steam Cleaners | Steam & Shampoo