A window cleaner
The cost to replace a double pane of window glass depends on many factors. The price will be relative to the size of the window that needs replacing, the quality of the glass and the company that one uses to replace it.
Opaque privacy glass is the best glass for bathroom windows. Block glass also works great depending on the window. If none of those work, a regular double paned window will suffice and then you can put window treatments in the window for privacy.
You can clean the inside of a double pane window by spraying a vinegar and water solution onto the glass and wiping it with a microfiber cloth. Use a vacuum with a brush attachment to remove any dust or debris from between the panes. If there is condensation or mold between the panes, you may need to contact a professional window cleaner to address the issue.
The best way to clean a glass window without streaks is to use a lint free cloth. Also, using window cleaner or vinager helps. Finally, try to clean windows when sun is not directly shining on them.
Single Strength Glass is 3/32" thickness and Double Strength Glass is 1/8" thickness.
You need to use tempered glass only.
because vacuum will make the glass collapse
it slows conduction
If you know who made it the factory should be able to supply. If it is stationary and double paned then most glass companies should be able to supply a new glass. Should be able to install new glass in old window even if the frame in solid around glass. There is always a way to replace any window glass.
Ammonia. That will cut through the grease and clean the window.
Because argon is a better insulator than air