Diffrient World Chair
IN THE NEWS
ERGO Info
If your chair has a back lock, unlock it and adjust the recline tension according to your body weight. Your chair should comfortably support you throughout the entire recline range.
Awards
|
|
|
|
|
|
|
Diffrient World marks Humanscale's first foray into all-mesh task seating. Like its mesh-backed forerunner, Liberty, the Diffrient World chair's tri-panel backrest hugs the body to provide tailor-made lumbar support, while its mesh seat eliminates contact stress under the thighs. But Diffrient World’s major innovation is its mechanism-free recline action, which leverages two parts of the chair’s frame and the laws of physics to provide automatic, balanced support throughout the full range of recline. No chair is more intuitive, creating the ultimate user-friendly sitting experience.
Designer
An industrial design legend, Niels Diffrient has been called “the granddaddy of the ergonomic revolution.”
Read the bio 
Responsible Design
Sustainability is the natural outcome of simple, elegant design.
Find out why
Features
Physical Characteristics
Cushions
- Non-stretch, tri-panel mesh back
- Non-stretch mesh seat
- Optional upholstered polyurethane foam seat cushion
External Frame
- Injection-molded, structural, integral color glass-filled Nylon 6
Stored Energy Devices
- Pneumatic cylinder for adjustable seat height
Optional Foot Ring
- Chrome-plated steel
Standard Features
Self-Adjusting Recline
- Mechanism-free counter-balance recline action automatically provides the right amount of support through the full range of recline motion, regardless of user size and weight
- No tension springs to adjust
- No recline locks to set/release
- During recline, the angle between torso and legs opens up for better body function
- User maintains near-constant eye level during recline
- Pivoting Backrest
- Extra motion of the backrest during recline automatically adjusts to the changing needs of the spine
- Provides additional lumbar support as needed
Form-Sensing Mesh
- Tri-panel, non-stretch mesh construction creates body-fitting contours and self-adjusting lumbar support for a customized fit
- No external lumbar devices to adjust, break or lose
- Low-abrasion mesh protects clothing
- Modular for easy replacement and upgrades
Non-Stretch Mesh Seat
- Automatically sculpts to match body contours
- Cradles the body in flexible, breathable mesh
- Frameless front edge eliminates contact stress under the thighs
Standard Cylinder
Provides seat height range that accommodates 95% of the population
Body Fit
- Size adjustable to fit 95% of the population
- Form-sensing mesh provides perfect lumbar support—automatically
- Manual adjustments for fit-to-size:
- Seat Height: 5” (127mm) adjustment range
- Seat Depth: 3.5” (89mm) adjustment range
Casters
- 3” (76mm) standard hard casters
Optional Features
Armrest Options
- Armless
- Fixed armrests
- Height-adjustable armrests with 3.2” (81mm) range of adjustment
Arm Pad Options
- Flexible Duron
- Matching textile-covered arm pad
Upholstered Seat Cushion
- Mesh topped with a thin layer of polyurethane foam
- Upholstered in a variety of textile options
Cylinder Options
- Low cylinder for small users
- Tall cylinder for very tall users
- High cylinder with foot ring
Fireproofing
- CAL 133 certified
Caster Options
- Non-rolling glides for fixed location use
- Optional soft casters for hard floors
Foot Ring
- Chrome finish
- Height-adjustable
Specifications
| CODE | DESCRIPTION | MEASUREMENT |
| a | Seat Depth (from face of lumbar to front of seat) |
16.5"– 20" (419mm – 508mm) |
| b | Seat Height (floor to compressed front center of seat cushion) |
16"– 21" (406mm – 533mm) standard 15.25"– 19" (387mm – 483mm) low cylinder 17"– 22.25" (432mm – 565mm) tall cylinder 20.5"– 28.5" (521mm – 724mm) high cylinder |
| c | Seat Width | 21.1" (536mm) |
| d | Backrest Height | 23" (584mm) |
| e | Backrest Width | 19" (483mm) |
| f | Armrest Height (from compressed seat cushion to top of armrest) |
9.75" (248mm) fixed 7.75" – 11" (198mm – 279mm) adjustable |
| g | Armrest Length (from face of lumbar to front of armres) |
12.5" (318mm) |
| h | Distance between Armrests | 19" (483mm) |
| i | Height | 36.5" – 41.5" (927mm – 1,054mm) standard 32.75" – 39.5" (908mm – 1,003mm) low cylinder 37.5" – 42.75" (953mm – 1,086mm) tall cylinder 41" – 49" (1,041mm – 1,245mm) high cylinder |
| j | Base Diameter | 24" (610mm) |
| k | Chair Width | 26" (660mm) |
Scope of Users
- Standard chair fits more than 95% of the office population
- 5’0” Woman to 6'4' Man
- 100 to 300 lbs.
Users outside the standard range can be accommodated by:
- Low or Tall Cylinder
Weight
37 lbs. (16.8kg) Conference Chair/Task Chair
35 lbs. (15.9kg) Armless Chair
Backrest Recline
22° recline plus 7° backrest tilt
Reference Angle betwen Seat and Back
100° to 129°
Headrest Radial Motion (automatic motion during recline)
30°
Lumbar Support Increase in Recline
1"
Warranty Information
Sustainability
We work hard to ensure that our environmental philosophy is reflected in each product we create. With our Design for Environment protocol, our designers and engineers examine the environmental impact of every choice made throughout the design process—from initial concept through final production. We invite you to read more.
A selection of sustainability highlights for Diffrient World::
- Recycled content: 20% pre-consumer, 2% post-consumer
- Modular cushions for easy replacement
- Learn more about how we work to extend the life of our products through both design and engineering so they won’t need to be replaced often
- Designed for easy disassembly with clear recycling instructions
- Ships in packaging that contains recycled content or blanket-wrapped, when feasible
- GREENGUARD Indoor Air Quality and GREENGUARD Gold certified
- ANSI/BIFMA level® 2 certified
- Close the Loop program ensures that every product ends its useful life with a minimal environmental impact
Finishes
White Chair |
Black Chair |
Gray Chair |
 Frame: White |
 Frame: Black |
 Frame: Gray |
| Armpads: Gray |
 Armpads: Black |
Armpads: Gray |
 Base Caps: Brushed Stainless Steel |
 Base Caps: Black or Optional Brushed Stainless Steel |
 Base Caps: Gray or Optional Brushed Stainless Steel |