You have a “failed seal.” That fog isn't a ghost; it’s humidity. The desiccant inside the spacer is full, and argon gas has escaped. You have three options: Live with the blur (maddening), replace the whole window (expensive), or perform surgery (cheap & satisfying).
Here is how to perform that surgery using the (no, not the potato). Step 1: The Autopsy Remove the vinyl sash from the frame. Look at the spacer (the silver or black strip between the two panes of glass). If it’s bent or corroded, stop—you need a new IGU (Insulated Glass Unit). If it’s intact, proceed. double pane window seal replacement
This is the duct tape of window repair. It is not elegant. It is not permanent. But when that morning sun shines through a clear pane instead of a foggy mess, you will feel like a wizard who just un-cursed a castle. You have a “failed seal
If you live in a humid climate (Florida, Louisiana), don't bother. The fog will return in six months. Just buy a new sash. But for the rest of you? Grab the drill. Let’s get weird. Here is how to perform that surgery using
The Scenario: You look out your living room window. The maple tree isn’t red. It’s blurry. The neighbor’s dog looks like a woolly mammoth. Your window has turned into a permanent shower door.
