AirPad 3C42 Series Task Chair

The AirPad 3C42 Series Task Chair from Interstuhl combines a "Body-Float" synchronous mechanism with innovative membrane technology to create a balanced, relaxing and fully supportive sitting experience. The mechanism rebalances automatically with every movement, large or small, to deliver the same gently floating experience whether the user is sitting upright and focused on a task, or reclining in the chair, deep in thought.

The seat back on this premium chair is made of a highly tensile, elastic "membrane." This semi-transparent material delivers exceptional comfort and resilient support for the entire back, along with unparalleled resistance to tears and punctures. (See the link under "Additional Resources" for a video demonstration.) Permeable Micro AirPads in the membrane permit airflow that helps to moderate body temperature. The seat back features height adjustable lumbar support, and adjustable counter-pressure to ensure that users of all weights are properly supported when leaning back in the chair.

The seat pan on the AirPad is tilt adjustable, with an intuitive hand-operated rolling mechanism to extend or reduce its depth (front to back). Together, these features allow users of all heights to benefit from a seat that is custom sized and optimally positioned. The seat fabric is high grade commercial polyester rated at 400 g/rm.

An even higher degree of adjustability characterizes the T-armrests on the AirPad Task. To allow users of all builds to meet their individual needs for arm support, the "4-D" armrests are adjustable for height, width (from the inner edge of the left armrest to the inner edge of the right armrest), depth (forward and backward) and pivot (20° to the left and right).

The AirPad 3C42 Series Task Chair is available with the membrane back in a striking contemporary white, or in a more conservative black. All chairs come with soft-surface double casters and a durable, polished aluminum base.

• Advanced Membrane Back: The AirPad features a unique membrane back which provides superior body contouring support. The membrane is breathable for increased user comfort but unlike common "mesh" used in most other chairs, this membrane is amazingly strong, resilient and highly resistant to punctures, cuts, or tears. See the " INTERSTUHL AIRPAD: THE SYNTHESIS OF LIGHTNESS" video under Additional Resources for a demonstration of this strength.
• Body-Float Synchronous Mechanism: The AirPad features the Body-Float Mechanism from Interstuhl which permits the body to glide back and down. This floating movement can be used to avoid the potential risks of static sitting, even when remaining seated. It also enables users to adopt varying postures throughout the day, opening the torso angle up to 125°. For situations where the freedom of movement may interfere with work this feature can be "locked out" using a button adjacent to the seat. See "INTERSTUHL AIRPAD: BODY FLOAT MECHANICS" video under Additional Resources.
• Adjustable Resistance: - The Body-Float Mechanism features adjustable resistance which can be set for the weight and comfort of each individual user. The adjustment range will cover users weighing from 100 - 310 lbs (45 - 140 kg).
• Body Float Lock Option: Users can choose to limit the range of movement on the Body-Float Mechanism by engaging the Lock function at one of 5 positions - This way they can change the degree of movement throughout the day and to best suit the nature of the particular task being undertaken at any time.
• Mechanical Sprung Column: The AirPad includes a mechanical spring in addition to the traditional gas spring. This means that even if the seat is at the lowest height, the chair will still absorb a significant portion of the impact, reducing the potential for damage to the spine. Of course, when raised above the minimum height, the user can fully benefit from the cushioning effect of the gas spring.
• Height-Adjustable Back Rest: The AirPad chair back rest features a height adjustment range of 2.25" with a 5-position snap lock mechanism. Adjustment is as simple as lifting the back upwards through the settings, each of which can lock in place. Once raised fully the snap lock mechanism automatically resets to the lowest setting.
• Adjustable Lumbar Support: The AirPad has a significant lumbar curve built into the contoured form of the back. This combines with the tensioned membrane to provide firm yet flexible support that contours to the back of the user, providing a "natural" support in just the right place. This support is further enhanced by a reversible firm cushion bar which backs the membrane. By reversing this cushion bar between the flat and curved sides the user is also able to adjust the pressure of the lumbar portion of the backrest.
• Load-Dependent Casters for Hard Floors: The AirPad is equipped with soft 65 mm load-dependent casters for safety. This means that the chair will not roll away from the user when they stand up. These casters do not lock, they only exert just enough resistance so that the chair does not roll on its own when weight is removed, allowing users to re-position the chair with minimal effort. When the chair is occupied the brake fully disengages, permitting the user to move in the chair as required with no resistance.
• Tilting Seat: The AirPad offers an infinite range of seat inclination adjustment from 0° to -4°. As the seat tilt originates from the rear of the seat there is no need for adjustment of back height or seat positioning when the inclination is adjusted. The seat remains in correct alignment to the back regardless of the angle selected.
• Depth Adjustable Seat: Unlike most traditional office chairs, the AirPad uses a unique "rolling" mechanism which permits the front edge of the seat to be rolled "in" or "out" to shorten or deepen the depth of the seating surface. This performs the same function as the more common "sliding" seat pan but with an added benefit. A sliding seat pan will change the alignment of the seat to the back, especially the position of the area designed to provide the most support for the weight of the user. In addition, a sliding sea pan also changes the space or "gap" between the seat and the back, potentially creating an uncomfortable seating arrangement for users who require a deeper seat pan. The AirPad addresses this issue by maintaining the same seat-to-back alignment regardless of the size or build of the user. By moving the seat pan adjustment to the front, the AirPad provides all users with an optimum seating position where they are best able to benefit from all the features of the chair.
• "Waterfall Front" Seatpan: The AirPad is equipped with a "waterfall" front to reduce the risk of unnecessary pressure being exerted against the back of the thighs. To accomplish this the front of the seat is "rolled" down and away from the leg. This feature is also what provides the seat pan depth adjustment.
• Removable 4-D Armrests: The AirPad features 4-D Armrests that are adjustable for height, width (from the inner edge of the left armrest to the inner edge of the right armrest), depth (forward and backward) and pivot (15° to the left and right). See "Specifications" below for detailed range of movement. If desired the armrests can easily be detached using a simple Allen key.
• Polished Aluminum Base: The AirPad rests upon a strong polished aluminum base with 70% Recycled Content.
• Environmentally Conscious: The AirPad includes a high level of Recycled content and is 98.5% recyclable for sustainability. Packaging materials are 100% recyclable.

• Arm Rests:
  Dimensions: 4" W x 9.5" D (10.2 x 24.1 cm)
  Degree of Firmness: 39 Durometer Rating on the Shore Hardness Scale.
  Adjustment Range:

  • Width (from the inner edge of the left armrest to the inner edge of the right armrest):
    • ON-THE-FLY: 17.5" - 19.5" (44.5 - 49.5 cm)
    • Mechanical: There is an additional +/- 0.5" [1.27 cm] of adjustment, available via a mechanical setting, which brings the full width range to: 17" - 20" (43.2 - 50.8 cm)
  • Depth (forward and backward): 2"
  • Pivot: 15° to the left and right from any position
  • Height (above seat): 8 Settings ranging from 6" - 10" (15.2 - 25.4 cm) in 0.5" (1.3 cm) increments.
    (release button on underside of armrest)
  • Fully Removable: Both armrests easily be removed with a simple Allen key (included).
    Note: This is also how the additional +/- 0.5" of width can be achieved.
• Seat Pan:
  Adjustment: Innovative Active Forward Seat Depth Adjustment via Roller Extension (see "Depth Adjustable Seat" in the Features section for further details on this function)
  Width: 19" (48.3 cm)
  Depth: 18.25" - 19.25" (46.4 - 48.9 cm)
• Seat Tilt/Inclination:
  Adjustment: Infinitely Variable between 0° and -4°. Seat tilt occurs from the back of the seat, ensuring that users of all builds are correctly positioned at any angle of tilt.
  Note:The seat tilt adjustment is not intended to be performed under loaded conditions. Doing so can risk damage to the tilt adjustment mechanism.
• Seat Height Range: 16.3" - 21.0" (41.5 - 53.5 cm)
• Back Rest:
  Width: 19" (48.3 cm)
  Height (above seat pan): 23.2" - 25.6" (59 - 65 cm)
• Certifications: Quality management System DIN EN ISO 9001:2008, VO (EG) No. 1221/2009 (EMAS), Environmental Management System DIN EN ISO 14001:2009, OHSAS, EcoVadis Gold, Commitment to Sustainability. Quality Office, Blue Angel, Bifma e3 Level
• Warranty: Limited warranty, please see manufacturer Warranty PDF
• Package Contents: AirPad 3C42 Series Task Chair, User Guide

• Adjust Seat Pan Tilt When Chair is Unoccupied - It is advisable to not attempt to adjust seat tilt while the chair is in use. The seat tilt adjustment is not intended to be performed under loaded conditions and damage can be done to the tilt adjustment mechanism.
• Make a point of actively engaging with the Body-Float movement throughout the day. There is the option of locking out this feature if this is desirable when performing a specific task, however, do not forget to unlock it when the task is complete as otherwise you are losing a key element of the ergonomic benefit of this chair.
• Adjust the Body-Float tension to match your weight. You want to set the resistance at a level which requires some degree of effort when leaning back. Setting the resistance too low may permit the chair to shift too easily.
  Note: Adjustment of the Body-Float tension is gradual and may well take numerous turns to arrive at your desired tension level. This allows you to fine-tune the setting to exactly "your" level of resistance.
• Adjust the armrests to provide support when in a neutral position, with elbows resting comfortably at your sides and shoulders relaxed. The 4-D armrests are highly adjustable and can easily be repositioned when moving between task types.
• Use the seatpan roller to shorten or lengthen the seatpan to match the length of your thighs. You want to have 1-2 finger widths between the back of your knees and the front of the seatpan.
• When adjusting the height of your AirPad, aim for an elevation which lets your elbows open slightly more than 90° while your hands are resting on the keyboard or mouse. If your feet are unable to rest flat against the floor you may need to add a footrest to your workstation. If you are too low and the angle of your legs and torso is less than 90° then you should raise your chair to the appropriate level while also raising your input devices to a similarly appropriate height.