Studio windows are to be opened sufficient to allow a free flow of air, as far as reasonably possible without causing discomfort.  In the 1st & 2nd Floor Studios this will include opening windows at both ends of the room.

Windows are to be opened 15 mins before the start of each session and opened FULLY for 5 mins after each session.

This means the studio rooms may be cooler than usual, therefore you are advised to wear extra layers of clothing than usual.