SIHOO Doro S100 Ergonomic Office Chair User Manual

Product Overview

The SIHOO Doro S100 Ergonomic Office Chair is designed for optimal comfort and support during long hours of sitting. Featuring advanced ergonomic adjustments and high-quality materials, it adapts to your body's unique needs, promoting a healthy sitting posture.

Figure 1: SIHOO Doro S100 Ergonomic Office Chair in White Basic.

Key Features

• Dual Dynamic Lumbar Support: Sihoo's latest ergonomic chair, Doro S100, sets itself apart from traditional office chairs with its dual dynamic lumbar support. Featuring the newest dynamic adaptive mechanism and four springs, it offers 6D automatic adjustment, dynamically adapting to various body shapes and postures, providing comprehensive and enveloping lumbar support. This ultimately ensures a higher level of seating comfort.


Figure 2: Dual Dynamic Lumbar Support adapts to your back.

• 4D Coordinated Armrest: High-end ergonomic office chairs deserve equally sophisticated armrests. Doro S100 features a pair of 4D armrests with an ultra-soft and thick surface. These armrests can be adjusted up and down by 2.76 inches (7 cm), back and forth by 1.18 inches (3 cm), and inward and outward by 72°, coordinating with the backrest when reclining. You get to enjoy arm support in four directions, helping alleviate the strain on your shoulders whenever you're working, studying, and more.


Figure 3: Multi-directional 4D Coordinated Armrests.

• Advanced Independent Backrest: Doro S100 series utilizes high-resilience mesh fabric, offering an elevated back support experience. The chair back is independently adjustable, allowing the upper half to be positioned in 5 levels. Whether you are 5' (150 cm) or 6'3" (190 cm) tall, you can enjoy comprehensive support for your shoulders and neck. Additionally, the dual-wing lumbar support provides precise support to your lower back, effectively supporting your waist.


Figure 4: Independent Backrest with 5-level height adjustment.

• Adjustable Pressure-Free Seat Cushion: Sihoo Doro S100 series offers a seat depth adjustment range of 1.97 inches (5 cm). In addition, the seat cushion utilizes a waterfall-shaped design, effectively maximizing the contact area with the thighs and hips. This remains true even when you are in motion, ultimately minimizing pressure to the greatest extent possible and ensuring unobstructed blood flow.


Figure 5: Seat Depth Adjustment for personalized comfort.

Setup Guide

Follow these steps to assemble your SIHOO Doro S100 Ergonomic Office Chair. For a visual guide, please refer to the official assembly video below.

1. Connect the Mechanism and the Seat Cushion: Use four M6x20 mechanism screws and four 8mm washers to connect the mechanism to the seat cushion. Tighten them with the provided hex wrench.
2. Connect the Backrest and the Seat Cushion: Align the backrest with the mechanism. Connect them with four M8x20 backrest attachment screws and secure them with the hex wrench.
3. Connect the Armrest Brackets: Place the 6mm washers onto the armrest bracket screws (M6x25). Connect the armrest bracket to the backrest with the screws and secure them with the hex wrench. Repeat for the other side.
4. Assemble the Chair Legs and Gas Lift: Connect the five chair leg tubes to the chair base. Hand-screw the 10 M6x12 chair leg screws, then secure them with the hex wrench. Insert the wheels into the chair legs. Install the decorative cover and insert the gas lift into the center hole of the chair base.
5. Connect the Upper and Lower Halves: Align the gas lift with the hole in the mechanism and insert it into place. Ensure all connections are secure.

Operating Instructions

The SIHOO Doro S100 offers multiple adjustment points for personalized comfort. Refer to the video in the Setup Guide for visual demonstrations of these adjustments.

• Height Adjustment: Pull up the handle located under the seat to adjust the chair's height. Release the handle at your desired height.
• Armrest Adjustment: The 4D armrests can be adjusted for height, forward/backward position, and inward/outward rotation. Use the buttons or levers on the armrests to make these adjustments.
• Seat Depth Adjustment: Pull up the handle under the seat to adjust the seat depth. Slide the seat forward or backward to your preferred position.
• Recline Function: Pull out the handle to recline the chair. Push the handle in to lock the recline angle. The chair offers up to 135 degrees of recline.
• Backrest Height Adjustment: Raise the upper part of the backrest to adjust it in five levels, ensuring comprehensive support for your shoulders and neck.

Maintenance

To ensure the longevity and optimal performance of your SIHOO Doro S100 Ergonomic Office Chair, follow these maintenance guidelines:

• Cleaning: Regularly wipe down the mesh and frame with a soft, damp cloth. For deeper cleaning, use a mild soap solution and ensure all parts are thoroughly dried. Avoid harsh chemicals or abrasive cleaners.
• Casters: Periodically check the casters for any accumulated dust, hair, or debris that might hinder smooth movement. Clean them as needed.
• Joints and Mechanisms: Inspect all screws and connections periodically to ensure they remain tight. Tighten any loose screws with the provided hex wrench. Avoid over-tightening.
• Mesh Fabric: The high-resilience mesh fabric is designed for durability. Avoid sharp objects that could puncture or tear the mesh.

Troubleshooting

If you encounter any issues with your SIHOO Doro S100 chair, refer to the following common troubleshooting tips:

• Chair Squeaks: Check all bolted connections and tighten them if loose. A small amount of silicone-based lubricant can be applied to moving parts if squeaking persists.
• Difficulty Adjusting Height: Ensure the gas lift lever is fully engaged. If the issue persists, the gas lift cylinder might need replacement.
• Chair Feels Unstable: Verify that all legs are securely attached to the base and that the gas lift is properly inserted into the mechanism. Ensure the chair is used on a flat, even surface.
• Recline Not Locking: Check if the recline lock handle is fully pushed in. Ensure no obstructions are preventing the mechanism from engaging.
• Weight Capacity: Do not exceed the maximum weight capacity of 300 lbs. Exceeding this limit can damage the chair and pose safety risks.

Specifications

Warranty and Support

SIHOO prioritizes both product quality and customer service. The Doro S100 is backed by BIFMA and SGS certifications, guaranteeing many years of ergonomic comfort.

• Return Policy: This product is eligible for a 30-day refund/replacement return policy.
• Manufacturer Support: For any inquiries or assistance, please contact SIHOO customer support directly.