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Toll Free: 800-316-2207|SKU #: HUS1121

Humanscale Diffrient World Office Chair

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Humanscale Diffrient World Office Chair

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.


  • Self-adjusting recline with adjustable duron arms
  • Form-sensing mesh
  • Upholstered polyurethane foam seat cushion with pan textile
  • Pneumatic cylinder for adjustable seat height
  • Minimal controls
  • Manufacturer provides 15 year warranty

Product Details:

  • Product Type: Task chairs
  • Style: Modern
  • Base Material: Metal; Plastic
  • Mechanism: Pneumatic
  • Swivel: Yes
  • Ergonomic: Yes
  • Armed: Yes


  • Upholstered: Yes
  • Upholstery Material (Gray / Monofilament Stripe-Carbon/Wave-Graphite Frame / Back Textile-Color / Seat Textile-Color, Black / Monofilament Stripe-Atlantic / Wave-Black Frame / Back Textile-Color / Seat Textile-Color): Nylon; Elastic
  • Upholstery Material (White/Monofilament Stripe-Platinum/Vellum-Lt Gray Frame / Back Textile-Color / Seat Textile-Color, White / Torque-Lagoon / Vellum-Seal Frame / Back Textile-Color / Seat Textile-Color, White / Torque-Aluminum / Vellum-Light Gray Frame / Back Textile-Color / Seat Textile-Color, Gray / Silver Check-Sapphire / Vellum-Navy Frame / Back Textile-Color / Seat Textile-Color, Black / Monofilament Stripe-Black / Vellum-Black Frame / Back Textile-Color / Seat Textile-Color): Elastic


  • Overall: 26" W x 24" D
  • Minimum Overall Height - Top to Bottom: 36.5"
  • Maximum Overall Height - Top to Bottom: 40.51"
  • Overall Product Weight: 27lbs

Humanscale Diffrient World Office Chair

Weights & Dimensions


  • Armrests Min Height: 26"
  • Armrests Max Height: 29"
  • Armrest Width: 3.8"

Additional Weights & Dimensions

  • Overall: 26" W x 24" D
  • Seat: 20.5" W x 24" D
  • Base: 24" W x 24" D
  • Minimum Overall Height - Top to Bottom: 36.5"
  • Maximum Overall Height - Top to Bottom: 40.51"
  • Chair Back Min Height: 22.5"
  • Chair Back Max Height: 22.5"
  • Chair Back Width: 18.5"
  • Overall Product Weight: 27lbs


Product Type: Task chairsStyle: Modern
Base Material: Metal; Plastic
  • Base Material Details: Steel; Iron
Exterior Seat Material: Polyurethane foam
Hardware Material: Metal; PlasticNumber of Items Included: 1
Warp Resistant: YesUpholstered: Yes
  • Upholstery Material (Gray / Monofilament Stripe-Carbon/Wave-Graphite, Black / Monofilament Stripe-Atlantic / Wave-Black Frame / Back Textile-Color / Seat Textile-Color): Nylon; Elastic
  • Upholstery Material (White/Monofilament Stripe-Platinum/Vellum-Lt Gray, White / Torque-Lagoon / Vellum-Seal, White / Torque-Aluminum / Vellum-Light Gray, Gray / Silver Check-Sapphire / Vellum-Navy, Black / Monofilament Stripe-Black / Vellum-Black Frame / Back Textile-Color / Seat Textile-Color): Elastic
  • Cushion or Upholstery Fill Material: Foam
  • Foam Density: 7.78 lbs/cu. ft.
Mechanism: PneumaticSwivel: Yes
Back Height: Mid-backBack Type: Grid
Headrest Included: NoFootrest Included: No
Big and Tall: NoTwenty-Four Hour Chair: Yes
Adjustable Height: YesErgonomic: Yes
Tilt Control: YesWaterfall Edge: Yes
Lumbar Support: Yes
  • Passive or Active: Passive
Seat Slider: Yes
Life Stage: AdultCasters: Yes
  • Compatible Flooring: Carpet; Hardwood; Linoleum
Heated Seat: NoHeated Back: No
Leg Type: Five-point rollingArmed: Yes
  • Arm Type: Ergonomic
  • Arm Finish: Black
  • Armrest Material: Plastic
Adjustable Arms: Yes
  • Arm Adjustment Type: Height
Compatibility: No
Weight Capacity: 300Commercial Use: Yes
Recycled Content: Yes
  • Total Recycled Content (Percentage): 2%
  • Post-Consumer Content (Percentage): 20%
Eco-Friendly: Yes
Country of Manufacture: United States 


Assembly Required: NoAdditional Parts Required: No


Product Warranty: 15 Year Warranty; Fabric/Cushions/Arm Pads: 5 Years, Single-Shift Warranty 


GSA Approved: NoGreenguard Certified: Yes
ANSI BIFMA certified: Yes 

About the Manufacturer

Founded in 1982, Humanscale is recognized as the leading manufacturer of ergonomic products for the office. Their diverse product range helps ensure that individuals who spend hours each day in front of a computer, do so in maximum comfort and with minimal long-term health risks. To achieve this result, their philosophy regarding product design is this: Technology can make simple things complicated or complicated things simple. They believe in the latter approach and strive to design products that combine uncompromising function and honest aesthetics with ultimate ease-of-use.

Knowing that a truly ergonomic chair could make more of a difference to user health than most any other product, Humanscale entered the task seating market in 1999 with the Freedom chair, which has won 10 design awards to-date - including the Design Distinction Award in the prestigious ID Design Review 2000 competition. The Freedom chair has revolutionized the task chair industry and has set new standards for task chair performance and functionality. Because of its honest design aesthetic, Freedom has also been seen in dozens of feature films and is a regular in prime-time, being featured on hit television shows such as 24, CSI Miami and Boston Legal.

In 2004, Humanscale launched its extremely popular Liberty chair line. With its patent-pending Form-Sensing Mesh Technology, the Liberty chair takes the benefits of mesh seating – breathability, durability, sustainability and aesthetic appeal – to the next level, providing exceptional comfort and automatically customized lumbar support without an external lumbar device. To date, Liberty and the new Liberty Side Chair have won over 12 design awards, including Best of NeoCon Gold and ID Design Distinction Awards for each.

Most recently, Humanscale’s 13-member in-house design team, led by Design Director Manuel Saez, has continued Humanscale’s history of innovation, by designing such award-winning products as the M7 monitor arm, L2 notebook manager and FM500 foot rest. Housed in a new facility in the heart of Manhattan, the Design Studio features a team-oriented workstation design that encourages idea sharing and communication among all team members. It also boasts a state-of-the-art machine shop / prototyping lab that facilitates the speed and efficiency by which concepts can be realized into 3-dimensional and functional prototypes. The Design Studio works very closely with Humanscale’s in-house ergonomists to ensure that all designs are based on the latest human factors research and knowledge.

Humanscale has always been committed to environmental sustainability and continually strives to design, engineer and manufacture products that consume less of the Earth’s limited resources. This is accomplished by creating products that weigh less (i.e. require less material), have fewer parts (which requires fewer manufacturing processes) and contain a high percentage of recycled and recyclable content. Additionally, wherever possible, Humanscale utilizes aluminum as its material of choice. Their aluminum is 100% recycled and recyclable which never degrades, enabling it to be reused over and over again. Using aluminum usually costs them more than plastics, but their products are better for it. And so is the environment.


The Diffrient World Office Chair is a Modern style product. Modern style is very sleek with clean lines, and generally incorporates high gloss using whites, greys, and blacks. A focus on geometry and angular shapes is a hallmark of modern design. Glass and leather are also seen a lot with modern style. You can shop for more Modern Office Chairs in the Office Seating section of our site.

Humanscale Diffrient World Office Chair

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When you buy a Humanscale Diffrient World Office Chair online from Wayfair Supply, we make it as easy as possible for you to find out when your product will be delivered. You can check on a delivery estimate for the Humanscale Part #: W11 here. If you have any questions about your purchase or any other Office Chairs product for sale our customer service representatives are available to help.Whether you just want to buy a Humanscale Diffrient World Office Chair or shop for your entire business, Wayfair Supply has everything you need.
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Great product!

from Chicago, IL – Verified Buyer

This chair is fantastic if you don't want to have to worry about messing with 800 different adjustments. I love the simplified designed comfort. So much that I have two!

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Great chair

from Washington, DC – Verified Buyer

Wonderful chair . Unsurpassed design and comfort. I love it and will recommend it highly

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from Maumee, OH – Verified Buyer

Very comfy and urgonomical! the foam could've been a bit softer.

Was this helpful? Yes0 No1

Very comfortable office chair

from Austin, TX – Verified Buyer

I am very happy with the comfort and price of this office chair! It'a definitely going to make working from home much easier.

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from Colorado

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Diffrient World Office Chair is also sometimes listed under the following manufacturer numbers: W11BC71D712, W11BM10V101H, W11BM51W101, W11VC62V507, W11VM11W102, W11WM14V114, W11WT13H267, W11WT13V114, W11WT61V202