Humanscale Liberty Task Chair

Liberty, with Form-Sensing Mesh Technology, is unlike any mesh chair you’ve seen or experienced.  With its tri-panel construction, it has the body-fitting contours that single-panel stretch mesh chairs simply can’t achieve.  And it offers perfect lumbar support for everyone, without external devices or manual adjustments.  Liberty’s mesh back is formed by combining three panels of non-stretch mesh in the same way a tailor combines multiple pieces of material to form a shirt.  Its contours are custom-made to both fit and support the human body in unprecedented comfort.

Features

1) SELF-ADJUSTING RECLINE Intelligent counter-balance recline mechanism automatically provides the right amount of support through the full range of recline motion,  regardless of user size and weight liberty features-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  2) PIVOTING BACKREST Extra motion of the backrest during recline automatically adjusts to the changing needs of the spine.  Provides additional lumbar support as needed  3) FORM-SENSING MESH BACK 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  4) CONTOURED SEAT CUSHION Carefully sculpted to match body contours  Increased contact area reduces pressure points  Modular for easy replacement  5) ARMREST OPTIONS Adjustable or fixed armrests connect to backrest instead of the seat so they stay with the body during recline  Armless model also available  6) BODY FIT Size-adjustable to fit more than 95% of the population  Automatic adjustments  Weight-sensitive recline  Form-sensing lumbar support  Manual adjustments  Optional height-adjustable armrests  Seat height  Seat depth  7) CASTERS 3" dual-surface casters roll easily on carpeted floors  and quietly on hard floors

 

Physical Characteristics

Cushions

Non-stretch, tri-panel mesh back
Molded polyurethane foam seat cushion
Duron arm pads
Optional arm pads and seats have top layer of Technogel®
Seats upholstered with a variety of materials customized to the unique form of the cushion

Cushion Pan, Back Frame, Five-Arm Base

Injection-molded, structural, integral color plastics
Optional stainless steel caps on base

External Frame

Die-cast aluminum with fused plastic coating or polished aluminum finish
Stored Energy Devices
Nitrogen-charged gas cylinder for adjustable seat height
Coil spring in the self-adjusting recline mechanism
Torsion spring in the pivoting backrest

Optional Foot Ring

Chrome-plated steel

Standard Features

Self-Adjusting Recline

Intelligent counter-balance recline mechanism 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

Standard Cylinder

Provides seat height range that accommodates 95% of the population
Contoured Seat Cushion
Carefully sculpted to match body contours
Increased contact area reduces pressure points
Modular for easy replacement

Body Fit

Size adjustable to fit more than 95% of the population
Form-sensing mesh provides perfect lumbar support—automatically
Manual adjustments for fit-to-size:
Seat Height: 5” adjustment range
Seat Depth: 2.25” adjustment range

Casters

3” dual-surface casters roll easily on carpeted floors and quietly on hard floors

Optional Features

Armrest Options

Armless
Fixed armrests
Height-adjustable armrests with 5” range of adjustment

Gel Seat Cushion

Non-degradable, non-compressible
Technogel® layer on top of foam core
Provides maximum pressure distribution
Offers unmatched long-term comfort

Arm Pad Options

Flexible Duron
Technogel® for optimal comfort

Cylinder Options

Low cylinder for small users
Tall cylinder for very tall users
High cylinder with foot ring
Return-to-height cylinder returns chair to highest position when user exits chair

Fireproofing

CAL 133-approved
Fireproof barrier between textile and foam
Fire-retardant plastics

Caster Options

Non-rolling glides for fixed location use

Polished Base Caps

Stainless steel caps on five-star base for wear protection and aesthetic appeal

Foot Ring

Chrome finish
Height-adjustable

Specifications

Scope of Users

Conference/Task chair fits more than 95% of the office population
5’0” Woman to 6'4' Man
100 to 300 pounds
Users outside the standard range can be accommodated by Low or Tall Cylinder

Weight

27lbs. Conference/Task Chair

Tilt & Recline

17° recline plus 7° backrest tilt - Conference/Task Chair
Reference Angle betwen Seat and Back
100° to 124°

Warranty Information

15 Years, 24/7 Warranty
Fabric/Cushions/Arm Pads: 5 Years, Single-Shift Warranty

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 Liberty Conference/Task:
Recycled content: 16% post-consumer, 14% pre-consumer
Weighs as little as 40 pounds, minimizing resources used in shipping
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

Textiles

Finishes

User Instructions

Liberty Custom Fit Instructions (Interactive)
Liberty Custom Fit Instructions (PDF)

Installation Instructions

Liberty Back Pin Replacement Instructions (PDF)
Seating Parts and Repair Manual (PDF)

FAQ

1. Why isn't the seat pan of the Liberty chair made of mesh like the backrest?

When the Liberty chair was created, a contoured foam or gel seat pan provided greater long-term sitting comfort than a mesh alternative. Although a mesh seat pan has since been developed for the Diffrient World chair that achieves excellent all-day sitting comfort, the Liberty chair's classic design remains unchanged.

2. What kind of mesh and upholstery textiles are available for the Liberty chair?

The textiles available for Liberty are as unique as the rest of the chair and satisfy requirements far more demanding than typical mesh and upholstery textiles. To view Liberty textile descriptions, specifications and colors, click on the "Textiles" link within the Liberty chair section of our website.

3. Are the mesh textiles offered for Liberty gentle on clothing?

Each of our mesh textiles was specifically designed to be gentle on your clothes. Unique to our industry, Humanscale performs a reverse Wyzenbeek test on all of our mesh textiles to ensure that they will not damage clothing. We look at how our mesh abrades three different clothing textiles compared to a standard #10 cotton duck as the abradent. These results show that our mesh textiles are far gentler on your clothing than cotton duck.

4. What frame color options are available for Liberty?

To view the frame color options, see the information illustrated in the Liberty seating section of our website.

5. Is Liberty offered with adjustable arms?

Liberty is available with fixed arms, adjustable arms, and in an armless model.

6. I would like to test a Liberty chair before I purchase it. Where can I go to see the chair?

Give us a call at 1-877-724-4922. 

7. Can a mesh-backed chair provide adequate lumbar support?

Using Form-Sensing Mesh Technology, Liberty offers perfect lumbar support for everyone automatically - without the need for manual adjustments or external lumbar devices. With Liberty, three panels of non-stretch mesh are sewn together to create a contoured shape optimized for the human back, creating ultimate body-hugging support.

8. Why is non-stretch mesh preferable to stretchy mesh? Wouldn't stretchy mesh be more comfortable?

A single panel of stretchy mesh pulled tight around a frame cannot be contoured to the shape of the human back, and therefore cannot provide adequate lumbar support. This leads to discomfort in the long run. Non-stretch mesh displaces instead of stretches, providing support for users of all sizes.

Liberty Task Chair Options

Armrest/Armpad

0 - Armless 
1 - Adjustable Duron Arms +201
2 - Adjustable Duron Arms with Textile +229
6 - Fixed Duron Arms +117 
7 - Fixed Duron Arms with Textile + 145 
X - Fixed Duron Gel Arms +151
M - Fixed Gel Arms with Textile +179
D - Adjustable Duron Gel Arms +235
C - Adjustable Gel Arms with Textile +263

Frame Colour

B - Black with Black Trim
V - Silver with Silver Trim
L - Silver with Black Trim
A - Polished Aluminum with Black Trim
P - Polished Aluminum with Silver Trim

Back Mesh

M - Monofilament Stripe
C - Cilver Check
N - Pinstripe
A - Dash
J - Catena

Mesh Colour

Black
Poppy Seed Caraway
Bayberry
Cornflower

Seat Textile

W - Wave +23
F - Ginkg0 +51
V - Vellum +23
E - Promessa +107
G - Squiggle/Horizontal
S - Squiggle/ Vertical
K - Lotus +23
B - Bridget Stripe/ Vertical +51
H - Bridget Stripe/ Horizontal +51
D - Sensuede +107
Q - Bizon +524
R - Cervo Leather +1017
Z - Vicenza Leather +476

Textile Colour

Black
Bark Brown
Saddle
Night Blue

Box Stitching

No Stiching (Non-leathers only)
N - Noir
E - Expresso
M - Midnight
C - Coffee
O - Oak
T - Tan
A - Cocoa
V - Vanilla

Seat Type

Standard Foam Seat Pan
G - Gel Seat +83

Cylinder Height

Standard cylinder - 5"
L - Low cylinder - 3.75" +29
T - Tall cylinder - 5" +41
F - Hight 8" cylinder + 18" foot ring +123
R - Hight 8" cylinder + 21" foot ring +170
A - 3" Return to height cylinder +48

Casters

Standard 3" casters - carpeted floor
S - Soft casters - hardwood floow
G - Glides

Fire Proofing

None-standard Plastice & Foams
C - CAL 133-Approved Plastics & Foams +47

Base Upgrade

Standard base to match trim colour

NOTE: Not all combinations available.  Check with Libertty Task Chair Configurator.

Liberty Chair Quick ship options

Adjustable Duron Arms
Black frame with black trim
Foam seat pan
Standard 3" carpet casters
5” cylinder

SKU: L111BM10W101 - Liberty Task Chair, Monofilament Stripe Black Backrest, Wave Black Seat
SKU: L111BM10V101 - Liberty Task Chair, Monofilament Stripe Black Backrest, Vellum Black Seat
SKU: L111BM11V101 - Liberty Task Chair, Monofilament Stripe Carbon Backrest, Vellum Black Seat
SKU: L111BM51V101 - Liberty Task Chair, Monofilament Stripe Atlantic Backrest, Vellum Black Seat
SKU: L111BM10V102 - Liberty Task Chair, Monofilament Stripe Black Backrest, Vellum Graphite Seat
SKU: L111BM11V102 - Liberty Task Chair, Monofilament Stripe Carbon Backrest, Vellum Graphite Seat
SKU: L111BM51V102 - Liberty Task Chair, Monofilament Stripe Atlantic Backrest, Vellum Graphite Seat
SKU: L111BM10V507 - Liberty Task Chair, Monofilament Stripe Black Backrest, Vellum Navy Seat
SKU: L111BM11V507 - Liberty Task Chair, Monofilament Stripe Carbon Backrest, Vellum Navy Seat
SKU: L111BM51V507 - Liberty Task Chair, Monofilament Stripe Atlantic Backrest, Vellum Navy Seat
SKU: L111BM11W101 - Liberty Task Chair, Monofilament Stripe Carbon Backrest, Wave Black Seat
SKU: L111BM51W101 - Liberty Task Chair, Monofilament Stripe Atlantic Backrest, Wave Black Seat
SKU: L111BM10W102 - Liberty Task Chair, Monofilament Stripe Black Backrest, Wave Graphite Seat
SKU: L111BM11W102 - Liberty Task Chair, Monofilament Stripe Carbon Backrest, Wave Graphite Seat
SKU: L111BM11W507 - Liberty Task Chair, Monofilament Stripe Carbon Backrest, Wave Navy Seat
SKU: L111BM51W102 - Liberty Task Chair, Monofilament Stripe Atlantic Backrest, Wave Graphtie Seat
SKU: L111BM10W507 - Liberty Task Chair, Monofilament Stripe Black Backrest, Wave Navy Seat
SKU: L111BM51W507 Liberty Task Chair, Monofilament Stripe Atlantic Backrest, Wave Navy Seat

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