Hazards of Swivel Office Chairs
The hazards of swivel office chairs are mainly reflected in four aspects: explosion risk, structural safety hazards, health damage, and chemical hazards.
Explosion risk is one of the most serious safety hazards of swivel chairs. Inferior gas springs may be filled with compressed air instead of inert nitrogen gas internally, causing the metal inner wall to be eroded and rusted by oxygen, generating heat that makes the gas expand and ultimately leading to an explosion. For example, in 2013, Ms. Liu in Fujian Province was using a swivel chair when the gas spring exploded, causing a steel tube to penetrate her lower body, and more than ten metal fragments were removed from her body; in 2009, a 14-year-old boy in Jiaozhou, Shandong, died after the explosion of a swivel chair at home despite rescue efforts. These cases show that the explosion risk of inferior gas springs can directly threaten life safety.
Structural safety hazards also cannot be ignored. Some swivel chairs have problems such as base breakage and caster detachment, especially the high risk of breakage due to the thin wall and poor strength of the five-star feet. A spot check by the State Administration for Market Regulation found that among 21 batches of unqualified office chairs, 17 batches were swivel chairs with such problems. Base breakage or caster detachment may cause the user to suddenly fall, resulting in fractures, sprains, and other external injuries, especially when moving quickly or turning around.
Health damage is closely related to usage habits. Swivel chairs with wheels, due to their comfort, can lead to prolonged sitting, which may cause chronic damage to the lumbar spine, cervical spine, shoulders, and neck. For example, white-collar workers maintain a fixed posture for a long time, with their heads resting on their necks in the same position, causing the shoulders and neck to be under constant pressure for a long time; at the same time, small hand movements do not increase the heart's pumping power but instead make the brain compete for the body's energy when the blood and oxygen supply is insufficient, accelerating physical degeneration. Long-term use may lead to occupational diseases such as cervical spondylosis and lumbar disc herniation.
Chemical hazards mainly stem from material problems. Some swivel chairs have the problem of excessive formaldehyde, which may release harmful substances, and long-term exposure may pose a potential threat to health. Formaldehyde is a known carcinogen. Long-term inhalation may cause respiratory diseases, allergic reactions, and even increase the risk of cancer, especially for sensitive groups such as children and pregnant women.
