Abstract: A game board having a generally rectangular or square playing surface whereon hexagonal spaces are contiguously arranged along axes at right angles to each other and along an axis at 45.degree. to each of the other axes.Each such hexagonal space is elongated along a longitudinal axis which intersects a pair of opposite sides, said opposite sides being shorter than the other four sides of the hexagonal space. The spaces may be provided with different colors to distinguish them, as desired.

Abstract: An air circulating console is disclosed which produces an ultra clean area suitable for performing surgical operations by first removing bacteria from the air and then forcing this ultra clean air at low velocity and in laminar fashion horizontally from the console to engulf an operation table, surgical team and associated equipment. The effective zone of ultra clean air is projected over a large area with the assistance of a pair of vertical high velocity air curtains emitted at an angle toward the ultra clean air from a pair of air curtain plenums which protrude from the console on opposite sides thereof. Air is returned to the console via a pair of intake ducts positioned on opposite sides thereof, rearward and outboard of the air curtain plenums. The air flow pattern generated by the console in a closed room exhibits a lifting effect which discourages the settling of bacteria.