1995 Environment Control Labels

Can someone look at the following picture and tell me what the left 2 control buttons are for as the paint has rubbed off. This is for a 1995 Buick LeSabre Custom:
http://thealdens.org/vehicle/1995BuickLeSabre/1995BuickLeSabreACControlPanelM.jpg
Thank you.

The top left button is RECIRC and the bottom left is OFF.