I use lens cleaner on occasion. If it's good enough for a telescope lens or my glasses, I'm confident in it working for my monitor. That and/or Kimwipes. Those

I use lens cleaner on occasion. If it's good enough for a telescope lens or my glasses, I'm confident in it working for my monitor. That and/or Kimwipes. Those things are magic. https://www.staples.com/kimwipes/directory_kimwipes https://www.staples.com/kimwipes/directory_kimwipes edit: Dammit. In Canada I can never find them not in bulk, though.