An Airlock is an area or a room between other rooms that separates the individual facilities from one another. You may, for common example, enter through a main door into a shared space that has separate doors leading to the Female and the Male Toilet Facilities, to a separate Unisex Accessible Toilet, and/or Baby Change Facilities. This Airlock space is represented with a tactile vertical line between the first two tactile symbols, and may also comprise various other symbols also, some of which are listed above. Airlocks can be added to any BTS (Aust) Standard Range Sign.
Sign with airlock Sign without airlock