How to adjust your ergonomic office chair

July 3, 2025

Comfort’s ergonomic office chairs offer exceptional adjustability for users with a diverse range of body types. With over a dozen adjustable features, the chairs – including Ergohuman, Mirus, and Enjoy – are suitable for home offices, or hot desking when people need to change the chair setup to accommodate different users.


Our chairs have been designed with straightforward controls and a wide range of positional settings to accommodate people of most anthropometric measurements. Setting the chair up correctly is crucial for reducing tension, pain, and pressure on the back, shoulders, neck, and thighs.

How to adjust our ergonomic office chairs

Comfort’s office chair range features over a dozen adjustable settings each. If your chair has a headrest, legrest, and coat hanger, you’ll find a total of 16 adjustments. Setting up the chair correctly ensures healthy posture and incredible comfort.

Ergohuman office chair adjustable seat

Adjusting the seat

Start by adjusting the seat height until your feet are flat on the floor, your thighs are parallel to the floor, and your knees form a 90-degree angle. To change the height, remain seated and lift the lever on the right of the chair to lower the seat. To raise it, take your weight off the chair and lift the lever.


Next, adjust the seat depth to fit the length of your thighs, leaving a 3 cm (or two-finger width) gap between the seat front and the back of your knees. Push the lever on the right of the chair forward while you're seated to slide the seat into position.


The seat tilt feature allows you to synchronise a forward seat tilt with the back of the chair, providing additional support to the thighs, lower back, and abdominal area when leaning into the desk. Push the lever on the left down at the front and lean back to release the forward seat tilt. Please note that this feature only works when the chair is in free-float mode. To lock the seat angle and back, return the right lever to the neutral position.

Ergohuman office chair adjustable back

Adjusting the backREST and lumbar SUPPORT TENSION

To adjust the backrest, push the lever located on the right side backwards and lean back into a comfortable position. If you prefer to use the free-float mode, leave the lever in this position. Alternatively, return it to the centre to lock the backrest. We recommend using free-float mode to encourage dynamic movement during work. This mode facilitates micro-movements, which can help prevent prolonged stationary positions and reduce the risk of back discomfort.


Set the backrest recline resistance to your weight when using free-float mode. Rotate the long spindle on the right forward to increase the resistance and rotate backwards to reduce it. You should be able to sit in an upright position with support from the backrest, while also being able to recline by gently pressing back. This gives you balanced support.


Next, adjust the backrest height to ensure it aligns with the natural curvature of your spine and lumbar. The seat's curved lumbar should fit snugly against your lower back. Reach behind the chair and lift using the back bar. To lower the backrest, lift it to its highest point and then lower it to the bottom setting. You can slowly lift it to your desired position.


Finally, adjust the lumbar tension to fine-tune its pressure. Use the dial on the backrest (Ergohuman) or the knobs on the lower backrest (Mirus and Enjoy) to increase or reduce lumbar resistance.

Ergohuman office chair adjustable arms

Adjusting the 5D armrests

All our mesh office chairs feature 5D adjustable armrests. You can adjust their height, width, angle, depth, and tilt for your comfort. For the best posture, keep your elbows close to your body and your shoulders relaxed.


To adjust arm height, lift the armrests to your preferred position. To lower them, lift them to the top and lower before lifting them to your desired height.



To adjust the depth, slide the arm pads forward or backwards for customised support. Adjust the arm pads to change the width, ensuring your shoulders and arms sit naturally by your sides with your elbows close to your body.


Pivot the arm pads inwards or outwards to help position your shoulders, neck, forearms, and hands for mouse and keyboard work.


Tilt the armpads up for comfortable wrist support when using handheld devices or reading a book. Lift to the top angle to release, then return to its neutral position.

Ergohuman office chair adjustable headrest

Adjusting the headrest

The angle and height of the headrests can be adjusted. To adjust the angle, pivot the headrest to support your neck and head, particularly as you recline. Lift or lower the headrest to comfortably fit into the curve of your lower neck.

Ergohuman office chair adjustable legrest

Adjusting the legrest

Turn the wheels on either side of the legrest to release it. Lift the frame and unfold the mesh legrest. Elevating your legs is especially comfortable when reclining, as it helps maintain a healthy posture.

Ergohuman office chair adjustable coat hanger

Using the coat hanger

The final customisable feature is the pop-up coat hanger. The coat hanger provides a safe and convenient place to hang your coat, ensuring it doesn’t compromise the chair's comfort or create a trip hazard. Lift the arms to pop the coat hanger up and press the button under the centre to drop them.

Ergohuman office chair adjustable lumbar support

The simple levers on the Ergohuman office chairs

The Ergohuman office chairs are easily adjustable via a few simple controls. With an ingeniously straightforward design, the single lever control operates the three most frequently used chair functions: seat height, seat depth, and back tilt.


On the right, an extended tension lever rotates to set the backrest recline resistance. A separate dial on the backrest adjusts lumbar tension. On the left side of the chair, a simple tilt control operates the forward seat tilt.


There are four levers, dials, or controls in total, making it easy to remember. Everything else can be adjusted directly; for example, you can raise or lower the armrests to adjust their height. 



The importance of ergonomic office chairs


An ergonomic office chair is a crucial investment for anyone who spends a few hours at a desk. Even if you don’t suffer back pain, ergonomic seating will reduce the chances of future aches and pain while ensuring you practice healthy posture.


From a business perspective, ergonomics improves workplace safety, increases employee happiness, and decreases worker compensation costs.


When investing in an ergonomic office chair like the Ergohuman Elite G2, you must customise the settings to suit your anthropometric measurements. Otherwise, you may not experience the full benefits of its ergonomic design. Whether you’re setting up your chair for the first time or need to recalibrate it (in the event of hot-desking) regularly, it only takes a minute to achieve an entire day of sustained comfort and support.


If you are considering Ergohuman chairs for your project and have further questions about our office chairs and their features, explore our website or contact us for assistance.

OTHER POSTS

woman reclining in a black ergohuman office chair while reading a book
April 3, 2025
When designing Ergohuman chairs, we crafted the range for comfort, especially considering those in creative jobs, such as photographers. Explore further details.
Black mesh office chairs sit at a row of desks in a modern office
By Beth McCallum February 19, 2025
Product Launch: The remastered Project Enjoy G2 office chair is the ideal operator chair for large or small scale office fit-outs.
The importance of practising healthy posture at your desk
By Mandy McDougall February 12, 2025
What is good posture, and why does it matter? Explore how to sit correctly in an office chair so you can experience the ergonomic benefits of your chair.
Black Ergohuman Elite office chair at a desk in a home office environment
January 7, 2025
The right ergonomic office chair is designed for good health and productivity, allowing you to thrive while working remotely.
A female elf sits in an Ergohuman chair
December 2, 2024
Comfort closes its doors for the festive season at 5 pm on the 23rd of December and reopens on 3rd January 2025.
woman in yellow turtleneck stretching upwards while seated at desk
November 18, 2024
A new study reveals how much sitting is too much. As experts in ergonomics, we're here to explain the best posture and how the right office chair can help.
back of a black/grey ergohuman elite office chair with a person sitting comfortably
November 14, 2024
Explore the science behind an active lumbar support system on our ergonomic office chairs and how it can transform your comfort.
Cover pages of Comfort Seating's specification sheets which provide detailed information on chairs.
October 14, 2024
After listening to our customers and dealers, we’ve added dimension information to our Elite G2 chair specification sheets.
Man adjusting Ergohuman office chair headrest
By Beth McCallum October 10, 2024
It's Ergonomics Month, and we're exploring the definition of ergonomics and its impact on comfort and productivity in the modern workplace.
Grey Enjoy Elite at a desk with a tag showing the Britsih Standards 5459 certification
October 3, 2024
Comfort is delighted to announce that all Elite office chairs, including Enjoy and Mirus, are now BS 5459-certified.
A modern office with two green chairs and trendy wallpaper
September 11, 2024
Explore seven proven methods for designing and fostering productive workspaces so employees and businesses can thrive.
September 11, 2024
Dynamic and active working illustrates an important shift to healthier and more flexible working, but what is it and why does it matter?
Post it note on a monitor in an office. The post it note reads
July 30, 2024
To encourage employees to return to the office, offering professional ergonomic assessments and furniture proves to be a worthy incentive.
Two monitors display assembly videos videos for the Ergohuman range of office chairs
July 12, 2024
Comfort launches new assembly videos. Explore how to correctly assemble our range of Elite office chairs to ensure the most comfortable experience.
grey ergohuman office chair at a desk
July 10, 2024
Explore the importance of a truly ergonomic office chair for working long hours and why it's imperative for reducing pain, strain, and other issues.
Lombard Rally programme showing the Ergohuman advert for the 2024 Kilmarnock event.
July 9, 2024
Ergohuman Gaming is an official sponsor of the Lombard Rally Festival, which will take place at Craufurdland Castle on 31 August to 1 September, 2024.
close up view of the nintendo switch with user's thumb operating joystick
July 2, 2024
Discover the range of Ergohuman gaming chairs – ergonomic gaming chairs with ideal features for all modes of gaming, including handheld gaming.
Two laptops showing videos of the Ergohuman chair adjustment videos
June 21, 2024
As part of our media library updates, we have published new user videos and PDF user guides on how to set up Ergohuman, Enjoy, and Mirus office chairs.
black ergonomic gaming chair at a gaming desk with two monitors
June 14, 2024
Is it worth buying a gaming chair? Explore the benefits of investing in an ergonomic gaming chair and how it will affect your health and performance.
A black Ergohuman Ultra gaming chair sits in front of a desk with dual screens
May 21, 2024
Explore how Ergohuman gaming chairs are designed to support your well-being, health, posture, digestion, breathing, and more.

SHARE