Functions and Effects of Office Chairs

The functions and effects of office chairs mainly include three categories: basic adjustment, body support, and convenient additional features, which can meet health and comfort needs in different scenarios.

Basic Adjustment Functions

1. Seat Height Adjustment: The seat surface can be raised or lowered through a gas rod structure to accommodate people of different heights and desk heights. The correct height should ensure that the feet are naturally flat on the ground and the thighs are horizontal, avoiding leg suspension or knee pressure, and helping to maintain an upright sitting posture.
2. Backrest Angle Adjustment: The conventional adjustment range is from 90° to 135°. Keep the backrest upright and close to the lower back during office work, and recline to 135° for relaxation during lunch breaks. Some high-end models support infinite adjustment from 95° to 160°, and the 160° flat-lying mode can provide a rest state similar to lying flat, relieving back muscle tension.
3. Seat Depth Adjustment: Mid-to-high-end models support the forward and backward movement of the seat surface to accommodate users with different leg lengths. By adjusting the seat cushion depth, it can avoid waist suspension or pressure on the back of the knees, making the buttocks and legs bear force more evenly and reducing fatigue from prolonged sitting.

Body Support Functions

1. Lumbar Support: The core configuration is an adjustable lumbar pillow that supports fine-tuning of the up-and-down and front-and-back positions to precisely fit the physiological curve of the lumbar spine and fill the gap between the lower back and the backrest. For example, the height of the lumbar support can be adjusted by rotating the side knob (usually supporting 6 cm of adjustment) to prevent slouching and hunchback from prolonged sitting and reduce the risk of lumbar strain.
2. Head Support: High-back models are equipped with adjustable headrests that fit the neck height of users of different heights, supporting the back of the head and neck, and relieving neck stiffness and soreness caused by looking at the screen with the head down for a long time.
3. Armrest Support: Adjustable armrests can adapt to various postures such as typing, working at a desk, and resting. By supporting the arms, they can disperse shoulder pressure, avoid shoulder suspension and tension, and prevent shoulder and neck pain, hunched shoulders, and other poor postures.

Convenient Additional Functions

1. 360° Free Rotation: The chair body can rotate flexibly, making it convenient to pick up objects or operate sideways without frequently moving the chair. It is especially suitable for small office spaces and improves usability.
2. Silent Caster Movement: The bottom is equipped with silent universal wheels that glide smoothly and do not damage the floor. It can easily adjust the sitting posture or the position of the chair, reduce the number of times getting up, and improve office efficiency.
3. Breathable Material Design: High-elastic mesh or breathable sponge materials are mainly used, with excellent ventilation and no sweating during prolonged sitting. For example, models covered with high-density breathable mesh all over the body can promote air circulation and reduce sweat accumulation; some designs feature waterfall-edge seat cushions, which reduce pressure on the back of the thighs through downward-sloping edges and promote leg blood circulation.