Hi, I'm Rachel Yatuzis and I'm going to show you how to remove acid rain from your car windows. If you live in a city that has a lot of air pollution, or maybe you live in the suburbs of a city that has a lot of air pollution, you've probably noticed an abnormally thick buildup on your windows. It looks kind of cloudy, a little bit grayish white, maybe even a little bit ashy after it dries, this is acid rain. And what you need to clean acid rain off of your car windows is not Windex. Ammonia is good for cleaning most things and that's what's in most commercial window cleaners, but vinegar is the best thing to clean that off of your car with. So what I would do is add about a cup of vinegar to a quart of water, like I've done right here. Spray it on to your window and what you're wiping for is to wipe the acid rain off. See that? So you want to make one swipe and then make another swipe. Try to use a clean part of the rag each time you do this that way you're wiping the acid rain off and you're not just smearing it around. This ma, may take quite a few rags or paper towels. I like to use microfiber clothes for projects like this 'cause they're a lot more absorbent and you can wash 'em and re-use 'em so you're not creating more waste. As you can see, this side of the window is a whole lot cleaner. And as all car windows, if you're going to clean 'em, lift up the windshield wipers, or in this this case, the back window wiper and just clean it up. And vinegar keeps the water from streaking. It works every time. I'm Rachel Yatuzis and that is how you clean acid rain from car windows.