Are Office Chairs Dangerous?

Office chairs, especially pneumatic lifting chairs, pose certain risks and require careful selection and use. The specific risks are as follows:

I. Explosion Risk
The core component of a pneumatic lifting chair is the pneumatic rod, which achieves seat lifting and lowering through the pressure difference of inert gases (such as nitrogen). If the pneumatic rod has the following defects, it may cause an explosion:

1. Material Issues: If the wall of the pneumatic rod is too thin, it cannot withstand the internal gas pressure and is prone to rupture after long-term use.
2. Impure Gas: Some companies use compressed air instead of inert gases or have insufficient gas purity to reduce costs, leading to decreased stability.
3. Improper Use: Frequent lifting and lowering or maintaining the same posture for a long time may increase the internal temperature of the pneumatic rod, further increasing the risk of explosion.
   Case: In 2017, an office chair exploded for a netizen in Anhui, damaging the computer host; in 2009, a 14-year-old boy in Jiaozhou, Shandong, died from an exploding swivel chair.

II. Lack of Explosion-Proof Steel Plate
The explosion-proof steel plate is a safety barrier for pneumatic lifting chairs, with a thickness of at least 2 millimeters, preventing the pneumatic rod from puncturing the seat surface in case of an explosion. However, some companies, to save costs, do not install explosion-proof steel plates or use plates with insufficient thickness, resulting in failed safety inspections. If the pneumatic rod explodes, fragments may directly impact the human body, causing serious injuries.

III. Risk of Five-Star Base Breakage
If the wall of the five-star base of a swivel chair is too thin or lacks sufficient strength, it may break during daily use due to excessive load or uneven force distribution, causing the user to fall and get injured. Such issues are more common in low-priced, inferior products, whose materials and craftsmanship do not meet safety standards.

IV. Excessive Formaldehyde
Some office chairs use inferior adhesives or coatings during production, leading to excessive formaldehyde emissions. Long-term exposure may cause respiratory diseases, skin allergies, and other health problems, especially for sensitive groups such as children and pregnant women.

Recommendations: When purchasing office chairs, choose products that have passed national safety certifications. Check whether the pneumatic rod has explosion-proof design, whether the five-star base is stable, and whether the materials are environmentally friendly. Avoid frequent lifting and lowering during use and regularly inspect the wear of components to ensure safety.