For this facility in Australia, the customer chose the WuduMate Compact. The signs above it make it clear what the purpose is, in case any non-Muslims using the multi-faith area are in doubt, and there is also a convenient shoe rack.
They have chosen the pre-cut non-slip matting to go around the base of the Compact, and the optional handles on the stool to assist sitting and rising for anyone with limited mobility. It is also possible to remove the stool, for example to use the WuduMate from a wheelchair.