This is not a whoppee cushion. This is an "alternating pressure seat pad" from Grant Airmass, debuted in 1985. It was designed to reduce fatigue and numbness from proling sitting for truck drivers, cabbies, and business people who spend long hours behind the wheel. The pad uses parallel air columns that alternately inflate and deflat to promote circulation.
This is not a whoppee cushion. This is an "alternating pressure seat pad" from Grant Airmass, debuted in 1985. It was designed to reduce fatigue and numbness from proling sitting for truck drivers, cabbies, and business people who spend long hours behind the wheel. The pad uses parallel air columns that alternately inflate and deflat to promote circulation.
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