1. Introduction
This manual provides essential information for the safe and effective use of your DUMOS Ergonomic Cross-Legged Office Desk Chair. Please read these instructions carefully before assembly and operation. Keep this manual for future reference.

Image 1.1: The DUMOS Ergonomic Cross-Legged Office Desk Chair in Fabric White.
2. Product Features
- Ergonomic Design: Features a height-adjustable backrest for personalized lumbar support, adjustable via a knob while seated. Available in breathable teddy bear fabric or easy-clean PU leather.
- Versatile Sitting Postures: Supports various postures including cross-legged, squatting, and kneeling, suitable for home office, yoga, or meditation.
- Comfortable Seating: Equipped with a nearly 4-inch thick seat and a 30 x 16-inch rotating footstool, providing support for hips, feet, knees, and ankles.
- 360° Swivel & Height Adjustment: Both the seat and footrest rotate 360 degrees. The seat height is adjustable from 0 to 4.7 inches.
- Durable Construction: Includes SGS-certified hydraulic cylinders, a sturdy steel base, and heavy-duty casters for long service life.

Image 2.1: Illustration of the adjustable backrest and height adjustment features.

Image 2.2: Examples of various sitting postures supported by the chair.

Image 2.3: Details of the soft teddy fleece fabric, highlighting its breathable, scratch-resistant, and comfortable properties.
3. Specifications
| Brand | DUMOS |
| Model Number | PTY01TD-WT-KAN |
| Color | Fabric White |
| Material | Fabric, Metal (Teddy Bear Fabric, Sponge Fill) |
| Product Dimensions (D x W x H) | 33.66" x 34.84" x 29.13" |
| Item Weight | 26 Pounds |
| Maximum Weight Recommendation | 385 Pounds |
| Assembly Required | Yes |
| Product Care Instructions | Wipe Clean |

Image 3.1: Detailed product dimensions and weight capacity.
4. Setup and Assembly
The DUMOS Ergonomic Cross-Legged Office Desk Chair requires assembly. Please follow the provided instructions carefully. All necessary components and tools are included.
Assembly Video Guide
Video 4.1: This video demonstrates the assembly steps for the DUMOS Ergonomic Cross-Legged Office Desk Chair. It shows how to attach the base, casters, and seat components.
5. Operating Instructions
Your DUMOS chair is designed for flexible and comfortable seating. Utilize its adjustable features to find your optimal posture.
Adjusting the Chair:
- Seat Height Adjustment: Use the lever located under the seat to raise or lower the chair to your desired height. The seat height is adjustable from 0 to 4.7 inches.
- Backrest Adjustment: The backrest height can be adjusted using the knob located on the side of the backrest support. Adjust it to provide optimal lumbar support.
- 360° Swivel: Both the main seat and the footstool are designed to swivel 360 degrees, allowing for easy movement and position changes.
Operational Video Guide
Video 5.1: This video demonstrates the height adjustment and 360-degree swivel functionality of the DUMOS Ergonomic Cross-Legged Office Desk Chair, showcasing various sitting positions.

Image 5.1: The 360-degree rotating seat and footrest provide flexibility for various postures.
6. Maintenance
Proper maintenance ensures the longevity and appearance of your DUMOS chair.
- Cleaning: For general cleaning, wipe the fabric or PU leather surfaces with a clean, damp cloth. Avoid harsh chemicals or abrasive cleaners.
- Caster Care: Periodically check the casters for any accumulated debris (hair, dust) and clean them to ensure smooth movement.
- Fastener Check: Occasionally inspect all screws and fasteners to ensure they are tight. Retighten if necessary.
7. Troubleshooting
If you encounter any issues with your DUMOS chair, please refer to the following common solutions:
- Chair not adjusting height: Ensure the height adjustment lever is fully engaged and the gas lift cylinder is properly installed. If the issue persists, contact customer support.
- Wobbly chair: Check all assembly screws and bolts to ensure they are securely tightened. Ensure the base is correctly attached to the seat mechanism.
- Casters not rolling smoothly: Inspect casters for debris (hair, lint) and clean them thoroughly. Ensure they are properly inserted into the chair base.
For problems not listed here, or if troubleshooting steps do not resolve the issue, please contact DUMOS customer support.
8. Warranty and Support
DUMOS is committed to providing high-quality products. For warranty information, product support, or to report any issues, please visit the official DUMOS website or contact our customer service team through the retailer where you purchased the product. Please have your model number (PTY01TD-WT-KAN) and purchase date available when contacting support.