Toxic Office Chairs

Toxic office chairs may have two major issues: the use of inferior materials and explosion hazards.

I. Made from 'Black-Hearted Scraps' or Waste Materials
Some unscrupulous merchants, aiming to reduce costs, use recycled 'black-hearted scraps' or industrial waste materials to make office chairs. These materials may contain harmful chemicals such as formaldehyde and benzene. Long-term exposure can enter the body through the respiratory tract or skin, causing symptoms like dizziness, nausea, and allergies, and even increasing the risk of cancer. For example, a man who purchased an office chair online had to be hospitalized due to prolonged use and discomfort. Upon disassembling the chair, he found that the internal filling consisted of moldy rags and plastic waste, which not only emitted a pungent odor but might also carry bacteria or heavy metal contamination. Additionally, chairs made from waste materials have poor structural stability, prone to collapse or breakage, further threatening user safety.

II. Explosion Hazards (Primarily Pneumatic Chairs)
Pneumatic lifting chairs are high-risk areas for explosions. They are typically filled with high-pressure nitrogen (with pressures reaching several dozen atmospheres). If the cylinder quality is substandard (e.g., using inferior steel or poor sealing) or wears out over time, the gas may suddenly burst out, generating an extremely strong impact force. A typical case occurred in 2013 when a woman using a swivel chair suffered a cylinder explosion, resulting in a 3-centimeter-wide steel column piercing her body. Doctors removed more than ten metal fragments from her, causing severe penetrating injuries. Such incidents have been dubbed 'butt-exploding chairs' by netizens and have led to multiple serious injuries and even deaths in recent years. Explosion causes are often related to thin cylinder walls, lack of explosion-proof devices, or the use of inferior gases (e.g., substituting oxygen for nitrogen). High-temperature environments or frequent lifting operations can further exacerbate the risk.

Summary: When purchasing office chairs, be vigilant about the risks of inferior materials and pneumatic structures. It is recommended to prioritize products that have passed national safety certifications (e.g., GB/T 38611-2020) and avoid buying chairs at abnormally low prices. When using pneumatic chairs, avoid frequent height adjustments, regularly check for gas leaks or cylinder deformation, and keep them away from high-temperature environments.