Positiv Me 300 High Back Black Office Chair (with armrests & lumbar pump)
The Positiv Me 300 High Back Task Chair including 4D armrests and inflatable lumbar support is our most common configuration and available on a quick delivery. The tri-high backrest is fully adjustable in height and angle, providing tailored support to the spine and encouraging a more upright sitting position.
Ideally suited to longer backed individuals, the seat includes a double slide mechanism and a flexible front edge, allowing users to fine-tune their sitting position for better leg support and circulation. An inflatable lumbar support built into the backrest allows users to easily adjust lower back support to their individual needs.
The chair also offers 4D armrests to support the upper limb. A bodyweight-responsive tension mechanism ensures smooth and balanced reclining, adapting naturally to the user’s movements.
Finished in black and built with a durable base and smooth-glide castors, the Positiv Me 300 is a dependable, ergonomic choice for any modern office environment.
- Tension controlled central tilt mechanism
- Suitable for those with a longer back
- Independent backrest angle adjustment
- Ratchet back height adjustment
- Comfortable padded seat
- Double seat slide adjustment for flexible support under the thigh
- Clearly labelled adjustments
- Inflatable lumbar air cell
- Armrests include height, depth and width adjustment
- Suitable for office and home environments
- Backrest length:
- 570 mm
- Backrest width (widest point):
- 500 mm
- Backrest adjustment:
- 600-680 mm
- Seat height (lowest):
- 490 mm
- Seat height (highest):
- 570 mm
- Seat pan width:
- 500 mm
- Seat pan length:
- 465 mm
- Seat pan (longest):
- 545 mm
- Seat pan (shortest):
- 420 mm
- Lumbar height:
- 145 mm
- Weight limit:
- 150 kg
- Seat tilt angle:
- 5° forward, 11° back
- Armrest (lowest):
- 150 mm
- Armrest (highest):
- 235 mm
- Armrest pad length:
- 240 mm
- Armrest pad width:
- 105 mm
- Armrest width adjustment:
- 435-475 mm
- Coccyx cut-out size (D x W):
- Not featured on this version
- Headrest/neckrest pad width:
- N/A
- Headrest/neckrest pad height:
- N/A
- Warranty:
- 5 years on structural parts
- 2 years on moving parts and fabric
- 1 year for 24 hour use
Supporting Documentation
Product Videos
Q: How do I adjust the back angle of my chair?
On the right hand side of your Positiv Me 300 there are 3 levers. The lever closest to your backrest adjusts the back angle. Lift the lever and adjust to a comfortable position. Once happy, release the lever to lock in place.
Q: My gas stem seems a little stiff – is this normal?
Sometimes, over time, the gas stem can become a little stiff when trying to adjust the height. A quick and easy fix for this is using WD-40 or Vaseline. Apply a light layer of grease to the gas stem, then try adjusting the gas stem 3-4 times. The gas stem should now adjust easily.
Q: Can my seat slide forward?
On the left hand side of your Positiv Me 300, you will find the seat slide lever. Lift the lever until you are happy with your position, then release the lever to lock in place.
Q: I have lumbar support in my backrest – how do I adjust this?
On the back of your Positiv Me 300 backrest there is a lumbar pump. Use the pump to inflate the lumbar support to optimal comfort.
If you need to deflate your lumbar, simply push the valve button on the pump.
Q: We have hot-desking and I want to adjust the backrest height – how do I do this?
Your backrest is on a ratchet height adjustment system. Simply lift the backrest to adjust the height of it.
Q: My seat pad is worn from years of use – can I just swap a new one for the old one?
You can swap the pads over. However, you will need to contact our customer services team on +44 (0) 345 345 0010 to arrange this, as this will need to be completed by one of our install technicians.
Still having problems?
Please give our customer services team a call on +44 (0) 345 345 0010.
