Formaldehyde Odor in Office Chairs

A pungent odor from an office chair does not necessarily indicate formaldehyde overexposure, but unqualified formaldehyde emissions can seriously harm health and can be effectively removed through scientific methods.

First, it should be clarified that formaldehyde is usually odorless at low concentrations and only produces a pungent odor similar to that of newly renovated houses at extremely high concentrations, accompanied by irritation to the eyes and nasal mucosa. Therefore, the pungent odor from an office chair may stem from other volatile organic compounds (such as benzene series and TVOC) or the odor of the material itself, but the risk of formaldehyde overexposure still needs to be guarded against. Some merchants engage in the practice of forging inspection reports, resulting in office chairs with "unqualified" formaldehyde emissions being labeled as "qualified". These products will continuously release formaldehyde, and long-term exposure may trigger respiratory diseases, allergic reactions, and even increase the risk of cancer.

For formaldehyde treatment in office chairs, targeted methods should be selected based on the material characteristics. Most office chairs are centered around artificial boards (such as density boards and particle boards), and the urea-formaldehyde resin adhesive used in their production process will continuously decompose and release formaldehyde. Treatment can be carried out in two steps:

1. Deep purification with phytoncide: Phytoncide is a natural ingredient extracted from plants with strong permeability. By evenly spraying it on the interior, exterior surfaces, back panels, bottoms, and joints of the board, it can penetrate deep into the fiber layer of the board, decompose the released formaldehyde molecules, and neutralize odors at the same time. When spraying, ensure uniform atomization and cover all exposed base material surfaces.
2. Long-lasting protection with lightless photocatalyst: After treatment with phytoncide, use a lightless photocatalyst to perform a secondary spraying on the board. The lightless photocatalyst can continuously catalyze and decompose formaldehyde under lightless conditions, forming a long-lasting protective film. When spraying, focus on areas with poor edge sealing (such as cutting surfaces and drilling holes), which are the main sources of formaldehyde emission. If the pollution is severe, increase the number of sprayings (2-3 times) and use a spray gun for enhanced coverage.

Key precautions: After treatment, maintain indoor ventilation to accelerate formaldehyde emission; if the edge sealing of the office chair is damaged or the material is of poor quality, it is recommended to contact the merchant for replacement or reinforcement of the edge sealing to reduce emission from the source. Regularly test indoor air quality to ensure that the formaldehyde concentration is below the national standard (0.08mg/m³) to safeguard health and safety.