Ergonofis presents the Equation Chair. Combining advanced ergonomics with modern design, its weight-activated mechanism, proprietary back-adjustment system, integrated seat slider, and adjustable arms adapt intuitively to every user for personalized comfort. With smooth adjustments and seven tone-on-tone fabric and mesh options, it delivers the perfect balance of form, function, and visual harmony in any workspace.
Details
Weight-activated mechanism adapts to your body to find ideal sitting position
Buttons on back frame allows you to adapt the backrest to fit your posture
Integrated seat slider
Ergonomic and height adjustable arms
Dual surface casters (for carpet or hardwood floors)
Optional dual pivoting arms that rotate at the arm joint (20° in / out) and the arm cap (20° in / out)
Weight Limit: 350lbs
In partnership with AllSeating, we created the Equation Chair—an intuitive design that makes comfort effortless while enhancing your workspace with timeless beauty.
We accept returns for chairs and accessories that are sent back to us in perfect condition (not used) and in their original packaging (or its equivalent) 30 days after the ship date.
Equation’s proprietary back support system provides maximum comfort with minimal adjustments. The chair offers three precise backrest angles—103.5° (neutral), 105.25° (position 1), and 106.25° (position 2)— easily adjustable through the discreet buttons on the lower back frame. Dial the backrest recline and the seat depth for the perfect sitting posture.
Weight-Activated Mechanism
The weight-activated tilt mechanism automatically adjusts to your body weight, delivering a smooth, personalized recline without manual tension knobs. It intuitively adapts to each user’s torque requirements, ensuring effortless comfort throughout the day.
Integrated Seat Slider
An integrated seat slider enables easy, fluid seat-depth adjustment, helping you find optimal leg and lower-back support with just a simple motion.
Adjustable Arms
Comes standard with height-adjustable arms for adaptable upper-body support. For enhanced flexibility, optional dual pivoting arms allow for additional width and angle adjustments—perfect for users who need more dynamic arm positioning throughout the day.
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Options
Dual Pivoting Arms
The Equation comes standard with height-adjustable arms for adaptable upper-body support. For enhanced flexibility, optional dual pivoting arms allow for additional width and angle adjustments—perfect for users who need more dynamic arm positioning throughout the day.
Looking for a more active sitting position?
Our Tilt ergonomic stool might just be what you're looking for.
No, it’s very easy and simple. Each chair comes with an installation guide and it should take you less than 10 minutes to assemble. The chair arrives in 4 pieces; the base, the gas cylinder, the seat, and the back support. The assembly is simply to slide the gas cylinder in the base, then to attach the back to the seat by using 4 screws.
Are the arms of the Equation Chair adjustable in width?
The regular arms of the Equation Chair are only adjustable in height.
However, we do offer the Dual Pivoting Arms option that allows to move the armrests freely (front, back, diagonal on each side).
