How easy should seat height adjustment be on a quality drafting chair?

On a quality pneumatic drafting chair, raising the seat should require nothing more than lifting a lever (or pressing an activation paddle) while taking your weight off the seat — the gas spring does the work. Lowering requires pressing the activation lever while sitting on the seat, letting your weight do the lowering. The adjustment should feel smooth and controlled, with no jerking or sudden drops. If a chair requires significant effort to adjust or if the cylinder is losing height on its own, it's time to replace the gas cylinder (an inexpensive repair). Difficulty adjusting height is often a sign of a worn or low-quality cylinder. FindOfficeFurniture.com stocks chairs with quality pneumatic cylinders — call 888-719-4960.