| 摘要 |
An improved office chair, having an inflatable seat bladder and seat-support coils, and an inflatable lumbar back bladder wherein each bladder is independently inflatable and independently deflatable to the user's desired firmness, through a dedicated inflation mechanism for each bladder, comprising a battery-powered air pump and a check valve, and a dedicated deflation mechanism for each bladder, comprising a battery-powered solenoid valve, wherein each inflation mechanism and deflation mechanism is battery-powered through an onboard battery pack and controlled by the user's manipulation of switches in an onboard control panel.
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