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“Air, instead of other materials, was chosen by the ROHO cushion inventor for many reasons.”
SeatCushion Comparisons
Foam is probably the number one filler used by cushion manufacturers. But it does a poor job of weight distribution and preventing pressure points. In addition, it breaks down in a relatively short time frame. Water is also a common filler in the cushion industry but is affected by temperature and gravity, is hard to adjust and takes too much time to set-up and take down. While gel cushions do a better job than foam at weight distribution, their density varies with temperature (e.g., softer when hot and harder when cold), they are extremely heavy (20+ lbs) and eventually coagulate over time.
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R efer to the image. It depicts pressure points on a foam vs. an ROHO seat cushion. Note the yellow and red areas in the left image. These indicate pressure points or hot spots that cause pain. The right image represents the ROHO cushion. The pressure points are relieved and the weight of the passenger is distributed evenly allowing for a much more comfortable ride.
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