Positiv Plus Medium Back Black Office Chair (with small seat)
Discover ergonomic excellence with the Positiv Medium High Back Ergonomic Office Chair – designed to deliver tailored comfort, support, and adjustability for demanding work environments. Equipped as standard with a lumbar pump for precise lower back support and durable padding, this chair combines functionality with superior comfort. Finished in a smart black nylon base and premium Bondai fabric, it’s ideal for professional settings. This version comes equipped with a small seat ideal for shorter users.
- Available in black
- Medium back
- No armrests
- Small seat - 460(w) x 410(d) mm (no seat slide)
- Unique ergonomic multi-featured seat system
- Sophisticated under-seat controls providing maximum adjustability for the user
- Modern contoured backrests with subtle curves
- Unique Ergo-Slide height adjustment system
- Replaceable moulded-foam seat cushions
- Top action, safety gas lift rated to 23.6 stone (150 kg)
- Inflatable lumbar panel for additional support
- Black nylon base
- Castors for carpeted floors
- Backrest length:
- 550 mm
- Backrest width (widest point):
- 430 mm
- Backrest adjustment:
- 490-570 mm
- Seat height (lowest):
- 500 mm
- Seat height (highest):
- 620 mm
- Seat pan width:
- 500 mm
- Seat pan length:
- 410 mm
- Seat pan (longest):
- 410 mm
- Seat pan (shortest):
- 410 mm
- Lumbar height:
- 210-290 mm
- Weight limit:
- 150 kg
- Seat tilt angle:
- 3° forward, 15° back
- Armrest (lowest):
- Not featured on this version
- Armrest (highest):
- Not featured on this version
- Armrest pad length:
- Not featured on this version
- Armrest pad width:
- Not featured on this version
- Armrest width adjustment:
- Not featured on this version
- Coccyx cut-out size (D x W):
- Not featured on this version
- Headrest/neckrest pad width:
- Not featured on this version
- Headrest/neckrest pad height:
- Not featured on this version
- Warranty:
- 5 years on structural parts
- 2 years on moving parts and fabric
- 1 year for 24 hour use
Q: How do I adjust the back angle of backrest?
There is a lever on the right hand side of your chair with ‘Back Angle’ written on it. Pull this lever up to adjust the back angle of your backrest. Once in a comfortable position, 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: I have lumbar support in my backrest – how do I adjust this?
On the back left hand side of your Positiv Plus there is a lumbar bulb. Pump the bulb to inflate the lumbar. If you wish to deflate the lumbar, press the valve button.
Q: My Positiv Plus headrest needs replacing or my chair wasn’t supplied with one. Can I order one to add or replace myself?
For information regarding replacement or supply please contact [email protected].
Q: How do I stop the rocking motion of my Positiv Plus medium back chair?
There is a lever on the left hand side of your Positiv Plus with ‘Lock’ written on it. Simply push this down if you wish to lock the tilt action.
If you wish to have the tilt motion, simply lift the tab lever and rock backwards. This enables the tilt function to work.
Q: We have hot-desking and I want to adjust the backrest height – how do I do this?
On the bottom right of your backrest there is a backrest handle. Push this handle upwards and adjust the backrest to your desired height. Once comfortable, pull the handle downwards to lock in place.
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.
