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    Great on Trustpilot with over 19,000 reviews!
  • Free Next Day Delivery - Even on Assembled Chairs!
    Free Next Day Delivery - Even on Assembled Chairs!
  • Multi-Buy Discounts
    Multi-Buy Discounts
  • At least a Three Year Warranty on every product
    Three Year Warranty
Humanscale’s commitment to simplicity has led to the design of the Diffrient Smart Task Chair. An intelligent mesh chair with an attractive linear aesthetic that makes a statement in any environment. Designed to automatically accommodate every individual, the Diffrient Smart Task Chair adjusts to the body weight of every user to provide ultimate support.

  • From Ergonomic design legend Niels Diffrient, the Diffrient Smart Task Chair features an unprecedented combination of performance, sustainability and simplicity.
  • With its weight sensitive mechanism the Diffrient Smart chair supports the user automatically throughout the full recline and encourages movement throughout the day.
  • Form Sensing Mesh Technology provides tailor made lumbar support without manual controls.
  • Mesh textile also has a ventilating effect keeping you cool while you work.
  • Diffrient Smart has an attractive, stylish aesthetic and features a U-shaped back that blends well into any modern environment.
  • Every user can take full advantage of the ergonomic benefits the moment they sit down, without even thinking about it.
  • 'Using the laws of physics, each user receives the correct lumbar support automatically, without the need for knobs or leavers.
  • Features revolutionary tri-panel mesh design that spontaneously adapts to the users needs without the use of complicated adjustments.
  • Mesh back available in two different textile options, Monofilament stripe and Pinstripe.
  • Monofilament stipe is an award-winning mesh textile, designed to provide optimal ergonomic support and comfort by merging strength, flexibility and resiliency.
  • Pinstripe is a light weight mesh that still manages to provide strength and support of a much heavier mesh by using two different monofilament stretch yarns to provide firmness and excellent recovery of the fabric.
  • Contoured seat pad shaped to match users body contours available in a selection of colours from the Camira Oxygen range.
  • Frame and five star base constructed from injection moulded, structural, integral colour glass filled nylon 6 in stylish Black or Grey finish.
  • Full range of Humanscale ergonomic tools and accessories available to create a truly ergonomic work environment.
  • 15 year manufacturer guarantee
  • Delivered assembled and ready for use.
  • View all Operator Office Chairs

Standard features of the Diffrient Smart Task Chair:
  • Self Adjusting Recline – Revolutionary mechanism free design harnesses the laws of physics and the user’s body weight. Automatically provides appropriate support and resistance regardless of user’s size. No unnecessary recline locks or tensions springs to set or adjust. User maintains near constant eye level during recline.
  • Form Sensing Mesh Technology – Tri-panel, non-stretch mesh construction creates body fitting contours and self adjusting lumbar for an automatic, customised fit.
  • Contoured Cushions - 51mm thick cushion that is sculpted to match users body contours.
  • Body Fit – Size adjustable to fit widest range of body sizes. Automatically customises recline resistance and lumbar support for every user. Manual adjustments for fit to size: Seat height 105mm adjustment range – Seat depth 50mm adjustment range.
  • Standard Cylinder – Provides seat height range that accommodates 95% of the population.

Optional features for the Diffrient World Mesh Task Chair:
  • Frame Colour - Black frame with black back, black frame with polished aluminium back or grey frame with polished aluminium back.
  • Duron Armrests – Height adjustable or height adjustable with colour matching textile cover connect to the backrest instead of the seat to stay with the body during recline. Armrests provide 127mm range of adjustment.
  • Mesh Textile – Monofilament stripe available in Black or Platinum or Pinstripe available in Black, Graphite, Silver or white.
  • Castors – Standard hard castors for carpeted flooring or soft castors for hard floors.

Your Humanscale chair is made to order especially for you and cannot be cancelled once manufacturing has commenced. These products are non-returnable unless damaged or faulty.

Free fabric swatches are available on request. Please order them if you are unsure of colours or designs.

We have selected the most popular fabric colours for you, however other fabrics and colours are available. Please call us for more information and prices.

Dimensions mm 
Seat Height  413 to 521 
Seat Depth  400 to 451 
Seat Width  489 
Backrest Height  572  
Backrest Width  483 
Chair Width  673 
Chair Height  984 to 1092 
Base Diameter  660 
Fixed Armrest Height  222 
Adjustable Armrest Height  127 to 244 
Armrest Length  222 
Distance Between Armrests  470 
Backrest Recline 18 
Rated For Use  Up to 136kg 
Weight 15.4kg (armless 14kg) 

Height Adjustable Arms
Height Adjustable Arms
Personalised support with height adjustable support.
Lumbar support
Lumbar support
Supports the lower back to prevent back pain.
Gas Lift Adjustment
Gas Lift Adjustment
Adjust seat height to the optimum height for the user.

Humanscale Diffrient Smart Task Chair

Ex VAT
£1,032.00
£0.00
Inc VAT
£1,238.40
£0.00


Product Code: 284630MKCL
  • Black Monofilament Mesh
  • Pinstripe Black Mesh
  • Pinstripe Graphite Mesh
  • Pinstripe Silver Mesh
  • Pinstripe White Mesh
  • Platinum Monofilament Mesh
  • Camira Oxygen Cleanse
  • Camira Oxygen Garden
  • Camira Oxygen Inhale
  • Camira Oxygen Liberty
  • Camira Oxygen Life
  • Camira Oxygen Lull
  • Camira Oxygen Revive
  • Camira Oxygen Serene
  • Camira Oxygen Spruce
  • Camira Oxygen Tranquil
delivery
Estimated Delivery:
20 working days
N. Ireland, Highlands & Islands - Contact us for a price

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