Office Chair Air Leak Sound

The sound of air leakage in an office chair may be caused by the leather material, internal filling, the gas spring of the lifting chair, or special circumstances in Grammer seats. It is necessary to determine whether it is a normal phenomenon or a fault based on the specific performance.

1. Leather Material Issues
   Some leather chairs may produce a slight air-leaking sound when pressure is applied to the leather material. This is due to the softness and elasticity of the leather, which causes gas to briefly escape during compression. This usually does not affect the comfort or structural stability of the chair. Such sounds are more common in new chairs or in low-temperature environments. As the leather ages or the temperature rises, the sound may gradually diminish.

2. Internal Filling Issues
   If the internal filling of a leather chair (such as sponge or foam) is loose or gas moves between the fillings, it may cause a temporary air-leaking sound. For example, when the filling is not fully compacted or locally collapsed, changes in pressure can cause gas to flow and produce sound. Such situations usually do not require special treatment. If the sound persists and is accompanied by significant deformation of the filling, it is necessary to check whether the filling is damaged or needs replacement.

3. Gas Spring Issues in Lifting Chairs

   • Normal Phenomenon: The gas spring inside is filled with high-pressure nitrogen gas. During lifting, the expansion or compression of the gas through the valve produces a slight hissing sound. If the chair lifts smoothly and can firmly lock at the desired height, such sound is within the normal design scope and is related to differences in noise reduction technology, so there is no need for concern.
   • Faulty Air Leakage: If the chair cannot maintain its height (e.g., it automatically and slowly descends or instantly drops to the lowest point when someone sits on it), it indicates that the seal of the gas spring has failed or its internal structure is damaged. In this case, use should be stopped immediately, as damage to core components may cause the chair to suddenly collapse, posing a safety hazard.

4. Special Circumstances in Grammer Seats
   If a Grammer seat produces an exhaust sound when descending after the damper is replaced, and it is ruled out that the air leakage is causing the inability to lift or lower, it may be a normal phenomenon. The reasons include gas flow in the gas spring, characteristics of the leather material, or issues with the internal filling, similar to the aforementioned situations. If the sound is accompanied by abnormal seat functionality (e.g., inability to lock at the desired height), further inspection of the damper or gas spring for damage is required.

Summary: If the air-leaking sound is only accompanied by normal functionality (e.g., smooth lifting and stable height locking) and there are no signs of structural damage, no treatment is usually required. If there is a functional failure (e.g., inability to maintain height), contact after-sales service immediately to inspect and repair the gas spring or damper components.