Back on with the "recirculated heat for a bus" idea...

I wish people would call things the correct name, I was told this was the draft excluder

 

It's actually a variable noise generator...

 

Possibly but the odds of getting door seals that fit properly makes this highly unlikely, perhaps those that set out on this enterprise could make a note of the seal supplier such that if they do suffocate the rest of us may be made aware of the source of these rare objects.

 

I have to open a window to shut the last door. Got mine from JK.

 

Lucky you! Mine came from there as well but must have been found in the reject bin.

 

I noticed Malc's Westie roof lifted up when he shut the passenger door at Dubfreeze....then when he got in the driver's side and shut that, so did the louvre window
Maybe he's running 'Suffocation seals'