may also work with other known seat suspensions as well as shown in fig5 and 6 the present invention may also be used with a scissors type seat suspension disposed between bases 22 and 24 is an air suspension spring 30 spring 30 is a bladder or bag with the volume of air inside the spring setting the height of the seat suspension by controlling the distance between bases 22 and 24 the air used to operate spring 30 is supplied from a compressor typically located remotely from the seat on the piece of equipment or vehicle the design construction and use of spring 30 are also well known to those of ordinary skill in the art and a spring manufactured by firestone may be used with the present invention attached to bases 22 and 24 is dampener 40 which functions as a shock absorber which restricts the vertical movement of bases 22 and 24 in one embodiment the dampener may be a fluid based system such as a hydraulic dampener manufactured by tenneco of course other types of dampeners or shock absorbers may also be used with the present invention such as spring air and other dampening systems known to those of skill in the art dampener 40 is affixed to base 22 by mount 42 and to base 24 by mount 44 in general dampening is achieved by the depression of plunger 46 which forces a fluid through a restrictive orifice located inside dampener 40 a rubber bumper 45 is located on plunger 46 which acts as a shock absorber and stop mounted to dampener 40 is air supply control valve 50 which controls the air volume inside air spring 30 as shown value 50 may be mounted to dampener 40 by u bolt 52 bracket 53 and.