Office Chair Ventilation Function
The ventilation function of an office chair is achieved by adding devices such as fans at key parts of the seat to improve the air circulation environment where the human body contacts the seat surface, keeping the occupant dry and comfortable in hot weather.
Ventilation Principle: The ventilation function of an office chair is mainly realized by adding fans to the back of the foam on the seat cushion and backrest. The fans draw in air and direct it into the ventilation layer. The airflow then permeates upward from the surface of the ventilation layer, passes through the heating pad, and flows to the surface of the seat cover. Since the seat cover is designed with holes, air can circulate smoothly, thereby carrying away the heat and sweat generated where the human body contacts the seat surface and improving the air circulation environment.
Design Type: Some office chairs adopt an air-suction ventilation design, such as the Qingxian OC1 Pro. Its fan is hidden at the bottom of the seat cushion. It extracts the hot air from the contact surface between the seat cushion and the human body at a high rotational speed (e.g., 4000 revolutions per minute) and discharges it through the bottom, forming a continuous airflow circulation. This design ensures that users do not feel obvious airflow when sitting down, but the entire seat cushion remains dry.
Structural Features: Taking the Qingxian OC1 Pro as an example, its seat cushion adopts a six-layer composite structure, including breathable fabric, a soft silk-floss layer, a three-dimensional support net, a variable-hardness perforated sponge, an air-guiding pressure-equalizing layer, and a centrifugal air-suction fan. Each layer has reserved air channels, allowing airflow to penetrate, be guided, be recycled, and be discharged, ensuring good ventilation performance.
Additional Functions: The seat cushion ventilation system of the Qingxian OC1 Pro is also equipped with a seat-leaving sensing function. When the user leaves the seat, the system automatically stops working to reduce energy consumption. At the same time, it supports two-speed airflow adjustment, allowing users to choose the appropriate airflow according to actual needs. In addition, its equipped 3000mAh battery has a battery life of more than 14 hours, which can meet daily use requirements. However, some users have reported that when the second-speed airflow is turned on, the noise is relatively obvious. The first speed is almost silent and suitable for daily office work; the second speed is suitable for the hottest days in summer but not for quiet office environments.
