Nitori Office Chair Explosion

There is currently no direct evidence indicating that Nitori office chairs have experienced explosion incidents. However, pneumatic lift office chairs (including some Nitori products if they adopt this design) do carry a risk of explosion due to component defects, so it is essential to carefully select qualified products.

The explosion risk of pneumatic lift swivel chairs (including some office chairs) primarily stems from quality issues with the pneumatic rods. The pneumatic rod is the core lifting component of such chairs, and its safety depends on the thickness of the tube wall, the composition of the internal gas, and the explosion-proof design. If the tube wall of the pneumatic rod is too thin, it may rupture under frequent lifting or high-temperature conditions. If the purity of the inert gas (such as nitrogen) filled inside is insufficient or replaced by compressed air, it can lead to explosion due to gas instability. Additionally, pneumatic rods without explosion-proof steel plates may eject metal fragments directly upon rupture, causing serious injuries. Between 2007 and 2020, multiple explosion incidents involving pneumatic lift swivel chairs occurred in various places such as Zhoushan, Zhejiang; Jiaozhou, Shandong; and Anhui, resulting in casualties, all related to the aforementioned defects.

National regulatory data shows that quality hazards are widespread among office chairs. In a 2020 inspection by the State Administration for Market Regulation, the failure rate of office chairs reached 23.3%, with 17 batches being swivel chairs. The main issues were related to the pneumatic rods' failure to meet high and low-temperature resistance standards (such as tube wall softening under high temperatures) and the lack of explosion-proof steel plates. This means that even non-Nitori brands can pose an explosion risk if they use inferior pneumatic rods.

Consumers should focus on three key points when purchasing:

1. Check certification marks: Choose products that have passed the GB/T 38611-2020 National Standard for Office Chairs or BIFMA (Business and Institutional Furniture Manufacturers Association) certification to ensure that the pneumatic rods have undergone pressure and high-temperature resistance tests.
2. Inspect explosion-proof design: High-quality pneumatic rods usually come with explosion-proof steel plates at the bottom (with a thickness of ≥2mm) to block fragment ejection; some products adopt a double-layer pneumatic rod structure to further reduce risks.
3. Avoid low-price traps: The cost of inferior pneumatic rods may be less than one-third of that of regular products. If the chair's price is significantly lower than the market average, be cautious about the quality of its components.

In daily use, avoid frequent lifting or prolonged exposure of the chair to direct sunlight to reduce the risk of sudden temperature increases in the pneumatic rod. If the chair experiences lifting jams, unusual noises, or rust on the surface of the pneumatic rod, stop using it immediately and contact after-sales service.