Office Chair Ventilation Function

The ventilation function of the 'Qingxian OC1 Pro' office chair adopts a suction design, achieving air circulation through a hidden fan at the bottom of the seat cushion. It features negative pressure exhaust, intelligent adjustment, induction start-stop, and composite structural support, making it suitable for hot summer environments or people who sweat easily.

1. Negative Pressure Exhaust Design

A centrifugal fan is built into the bottom of the seat cushion, operating at a high speed of 4000 revolutions per minute. It actively draws hot air from the contact surface between the seat cushion and the human body through the principle of negative pressure and exhausts it through the bottom. This design creates a continuous airflow circulation, avoiding the stuffiness or chilling problems caused by traditional fans blowing cold air directly at the legs, making it especially suitable for long sitting scenarios.

2. Intelligent Two-Speed Adjustment Mode

• Gentle Mode (Level 1): The fan operates at a low speed, with almost imperceptible noise, suitable for daily office work or quiet environments, balancing ventilation effects and comfort.
• Powerful Mode (Level 2): For high-temperature environments or high-intensity work scenarios, the airflow is significantly enhanced, but the noise is more noticeable, requiring a trade-off between ventilation needs and environmental quietness.

3. Induction Start-Stop Function

Through a gravity sensor, it achieves automatic shutdown when leaving the seat and automatic startup when returning to the seat, avoiding energy waste. For example, when the user briefly leaves the seat, the fan pauses, and upon returning, ventilation resumes without manual operation, enhancing convenience of use.

4. Six-Layer Composite Structural Support

The seat cushion adopts a layered design, balancing ventilation and comfort:

• Surface Layer: Danish Gabriel Atlantic breathable fabric, enhancing air circulation;
• Middle Layer: Soft silk floss layer and three-dimensional support mesh, providing elastic support;
• Core Layer: Heterogeneous perforated sponge and air-guiding pressure-equalizing layer, dispersing pressure and uniformly guiding airflow;
• Bottom Layer: Centrifugal suction fan, ensuring efficient airflow circulation.
  This structure avoids the problems of 'discomfort' or 'sagging' in traditional ventilation chairs, achieving a balance between support and breathability.

Actual Experience and Suitable Scenarios

Multiple review bloggers have reported that after continuous use for several hours in environments above 30℃, there are no obvious sweat stains on trousers, indicating significant ventilation effects. However, it should be noted that the airflow in Level 2 may produce noise in quiet environments, and if the office is temperature-controlled or the user does not sweat easily, the practicality of this function may be reduced. It is recommended for hot summer offices with insufficient air conditioning or for people with a tendency to sweat easily.