Important Safety Information
Always assemble the chair according to the provided instructions. Do not exceed the maximum weight capacity of 300 pounds to ensure stability and safety. Regularly check all bolts and connections to ensure they remain tight. Do not stand on the chair. Use the chair only for its intended purpose.
Product Overview
The EMIAH Ergonomic Office Chair GT100 is designed for comfort and support during extended periods of sitting. It features adjustable components to customize your seating experience.

Figure 1: Overall view of the EMIAH Ergonomic Office Chair in a modern office environment.

Figure 2: Key features of the EMIAH Ergonomic Office Chair, highlighting adjustable height, 360-degree swivel, retractable footrest, low back lumbar support, adjustable armrest, and thick high-density sponge cushion.
Video 1: An overview of the EMIAH GT100 Manual Series chair features, demonstrating its various adjustable components and ergonomic design.
Setup & Assembly
This product requires assembly. Please follow the included instructions for proper setup. Ensure all components are present before beginning assembly.
Video 2: A step-by-step guide for assembling the EMIAH GT100 Manual Series Office Chair.
Operating Instructions
1. Height Adjustment

Figure 3: Tilt and height controls are conveniently located on the side of the seat for easy access.
To adjust the chair height, locate the lever on the right side of the seat (labeled '2' in Figure 3). Pull the lever upwards while applying or releasing weight from the seat to move the chair up or down. Release the lever to lock the chair at the desired height.
2. Reclining Function & Footrest

Figure 4: The chair can recline up to 145 degrees, with an integrated footrest for full relaxation.
To recline the backrest, locate the lever on the right side of the seat (labeled '1' in Figure 4). Pull the lever upwards and lean back to your desired angle (90-145 degrees). Release the lever to lock the backrest. To extend the footrest, pull it out from underneath the seat. Flip the padded section forward to support your legs. To retract, flip the padded section back and push the footrest fully under the seat.
3. Armrest Adjustment

Figure 5: The armrests offer 3D adjustment for height (up and down 2.7"/7cm), inward/outward movement (2.6"/6.5cm), and rotation (30 degrees).
The armrests are 3D adjustable. Use the buttons or levers located on the armrests to adjust their height, move them inward or outward, and rotate them to find your optimal ergonomic position.
4. Headrest Adjustment

Figure 6: The headrest features 4D biaxial adjustment, allowing for vertical lift (up to 15 inches) and front/rear telescopic movement, as well as a 20-degree turn.
The headrest offers 4D biaxial adjustment. Adjust the height by sliding it up or down. The headrest also allows for front and rear telescopic adjustment and can be turned by 20 degrees to support your neck effectively.
5. Lumbar Support

Figure 7: The chair features an integrated lumbar pillow and comfortable neck support for customized fit and supportive bounce.
The chair includes an integrated lumbar pillow designed to provide comfortable support. This lumbar support is fixed to promote good posture and circulation.
Maintenance
To maintain the quality and appearance of your EMIAH Ergonomic Office Chair, follow these guidelines:
- Cleaning: For the PU leather, wipe with a soft, damp cloth. Avoid harsh chemicals or abrasive cleaners.
- Inspection: Periodically check all screws and bolts to ensure they are tight. Re-tighten if necessary.
- Avoid Direct Sunlight: Prolonged exposure to direct sunlight can cause the PU leather to fade or crack.
Troubleshooting
If you encounter issues with your chair, consider the following:
- Chair not rising/lowering: Ensure the height adjustment lever is fully engaged. If the gas lift is unresponsive, it may need replacement.
- Unstable chair: Check that all base legs are securely attached and all screws are tightened. Ensure the chair is on a flat, even surface.
- Seat too deep/uncomfortable: Adjust the backrest and ensure you are sitting correctly. Consider adding an additional cushion if needed for personalized comfort.
Specifications
- Brand: EMIAH
- Model Number: YMX-GT100-Y-SE-1
- Product Dimensions: 27.56 x 36.61 x 40 inches
- Back Style: High Back
- Seat Material Type: Faux Leather
- Fill Material: Foam
- Leg Style: Wheels
- Reclining Position Count: 4
- Maximum Weight Capacity: 300 pounds (as per safety information)
Warranty & Support
EMIAH is committed to providing quality products and customer satisfaction. For any issues or support needs, please refer to the following:
- Parts Replacement: Parts are replaced, not repaired.
- Return Policy: 30 days no reason to return.
- Damage Guarantee: Damaged upon arrival repair and replacement guaranteed.
For further assistance, please contact EMIAH customer service through the retailer's support channels.