Exploding Office Chair

The term 'exploding office chair' generally refers to the sudden explosion of a pneumatic lift swivel chair caused by component defects, primarily related to the use of compressed air in low-quality gas cylinders. Preventive measures include choosing genuine products and checking labels.

Cause of Explosion: Low-Quality Gas Cylinders Filled with Compressed Air

Genuine gas cylinders are filled with nitrogen, which has stable chemical properties and high safety. However, some unscrupulous manufacturers use compressed air instead of nitrogen to reduce costs. Air contains oxygen, and when the metal components inside the gas cylinder rub against each other during frequent lifting or sudden sitting, oxidation reactions occur, releasing heat. As the temperature and pressure continue to rise, when they exceed the gas cylinder's tolerance limit, the internal gas rapidly expands, causing the outer shell to rupture and creating an impact similar to an 'explosion'. For example, in an incident involving Ms. Liu in Xiamen in 2013, the steel column inside the gas cylinder was ejected at high speed due to the explosion, causing serious injuries.

Trigger Conditions for Explosion: Usage Habits Accelerate Component Wear

In daily use, suddenly sitting down or frequently adjusting the seat height can intensify the friction and wear of the metal components inside the gas cylinder. This mechanical damage can compromise the gas cylinder's seal, leading to gas leakage or abnormal pressure buildup. When the pressure is suddenly released, the impact force can penetrate multiple layers of density board, causing direct harm to the user. Over the past decade, more than 40 similar incidents have occurred nationwide, most of which are related to low-quality gas cylinders and improper use.

Preventive Measures: Choose Genuine Products and Check Labels

1. Choose reputable brands: Prioritize purchasing office chairs that have passed national safety certifications and avoid low-priced products from unknown sources. Reputable manufacturers are more stringent in the design, material selection, and production processes of gas cylinders, effectively reducing the risk of explosion.
2. Check gas cylinder labels: When purchasing, ensure that the gas cylinder has international safety certification labels such as SGS or TUV, or clearly indicates phrases like 'nitrogen-filled' or 'explosion-proof design'. If the gas cylinder has no labels or the labels are blurry, it may be a low-quality product.
3. Avoid rough use: Avoid suddenly sitting down or quickly adjusting the height during use to reduce mechanical wear inside the gas cylinder. Regularly check if the seat's lifting function operates smoothly. If there is any stuttering or unusual noise, contact after-sales service for repairs promptly.