windows fogging up

The windows in my grow room keep fogging up, and i don't wanna look suspicious if someone sees it from outside of the house.
Any ideas how to get rid of it? some spray or something like that?

there is too much moisture in the room

do they fog up or have some dew moister on your windows........depending on how the temp is inside me house to the outside temp my windows do that all foggy and dewy sun comes up and it goes away....it only happens the windows in your grow room ??

get some rain-x. yes foggy windows are bad and can give you away...

The windows have dew moisture...yes it only happens in my grow room...u think rain-x will do the job?

yes, I use it on my car windows to stop fogging. no reason it wouldnt work for you..

ok cool i will def try that stuff... thanks for the help