Hazards of Office Chair Lifting

If the pneumatic lifting chair is of poor quality, it may pose explosion hazards, which can cause serious injuries or even death in severe cases.

Explosion Causes

The lifting function of a pneumatic lifting chair relies on a pneumatic rod, and the gas filled inside it is a crucial factor. Regular products are filled with high-purity nitrogen. Nitrogen has stable chemical properties and is less likely to react with metal components. However, some unscrupulous manufacturers use compressed air instead of nitrogen to reduce costs. Compressed air contains active gases such as oxygen, which can react with metal components through oxidation, accelerating part aging and generating heat. As heat continues to accumulate, the internal pressure of the pneumatic rod keeps rising and may eventually exceed the structural limit, triggering an explosion.

Degree of Harm

When a pneumatic rod explodes, the internal pressure can reach 24 atmospheres, with an instantaneous explosive force of about 70 - 80 kilograms. This powerful impact is sufficient to penetrate six density boards and is even more devastating to the human body. The hard plastic, wood chips, and metal fragments produced by the explosion can fly at high speeds, potentially causing serious external injuries such as cuts and punctures. More dangerously, the pneumatic rod may pierce the human body like a bullet during an explosion, causing fatal damage to internal organs.

Real Cases

• In 2007, a 68-year-old man in Yantai City suffered severe injuries to his buttocks and legs due to an explosion of his computer chair. The damage to his rectum and anal canal was severe, bringing great pain to his body and life.
• In 2009, a 14-year-old boy in Shandong was pierced by the top rod of an exploding computer chair and died from excessive blood loss. A young life was lost, which is truly heartbreaking.
• An explosion of a computer chair also occurred in a supermarket in Jingdezhen, Jiangxi Province, causing extensive injuries to the user's buttocks. Foreign objects were embedded in the wounds, and the treatment process was extremely difficult.

Safety Recommendations

To avoid such dangers, when purchasing a pneumatic lifting chair, choose a well-known brand. These brands usually have strict quality control and testing standards to ensure that the pneumatic rod is filled with high-purity nitrogen, reducing the risk of explosion. Avoid using unbranded or poor-quality products, and do not ignore safety for the sake of saving money.