Misting habitation door window

[Petros]

Hi All
I have noticed that the window in our habitation door has started to mist up between the two layers of acrylic glass. Is there any way to remedy this, I suppose that the little plastic bung is at fault and not creating the seal anymore

 

[Pausim]

We have had the same problem. When it is warm with the sun on the door we pull the plug out to let the moisture escape.

 

[Lenny HB]

Acrylic is microporous to water vapor, nothing you can do to stop it.