Ground Blind had a musty smell this morning....

[loworange88]

So this morning I sat in a pop up ground blind that was set up at the end of the summer and has been in the same spot since. Today was my first time in there this season, and when I opened the door flap, I noticed it was pretty musty smelling in there. I was busted by 2 different deer within an hour of each other....luckily my buddy who was up in a stand about 150 yards away shot the one doe, so it worked out to be a good morning. But my question is, has anyone ever experienced this before? Should I be leaving the window or door flaps open some to allow it to breathe?

Thanks.

[Gthphtm]

Should have left the vent windows open,Mine has been left in the same spot all year with the windows open and smells the same as the area around it.

[loworange88]

Yeah I left the windows unzipped a little bit. I had a concern about wind getting inside it and lifting it off like an umbrella. The area where its at can get VERY gusty. Its staked down inside and we are using the external corner tie down ropes, but 30-40MPH wind can do some damage.