Ergo Air Ergonomic Heavy Duty Office Chair

1300 679 700
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Built for bigger frames and longer days — rated to 160kg. The Ergo Air is a heavy-duty ergonomic office chair designed for people who need serious support through a full working day. With a 4-lever fully ergonomic mechanism with seat slide, pneumatic lumbar pump, and high-density moulded foam seat, this chair gives you precise control over your sitting position — not just a basic height adjustment.

The pneumatic lumbar pump lets you dial in lower back support to exactly where you need it, while the 4-lever mechanism gives independent control over seat height, seat tilt, back angle, and back lock. The seat slide lets you adjust the seat depth forward or back to suit your leg length — a feature usually only found on chairs at twice this price. The heavy-duty moulded foam holds its shape over years of daily use — unlike flat-pack chairs that compress and sag after a few months.

AFRDI load rated to 160kg and certified Level 6 (the highest severity level for commercial use). BIFMA tested. Backed by a 10-year warranty — one of the longest in this price range.

Why Choose the Ergo Air?

Pneumatic lumbar pump — inflatable lumbar support that moulds to your lower back, rather than a fixed plastic plate
4-lever heavy-duty mechanism with seat slide — independent control over seat height, seat tilt, back recline angle, back lock, plus adjustable seat depth
High-density moulded foam seat — retains shape and support far longer than standard cut-foam cushions
160kg weight rating — AFRDI load tested for larger and taller users
AFRDI Level 6 certified — approved for severe commercial use (8+ hours daily)
10-year warranty — built to last in busy office environments

Specifications

Dimensions
Overall Height	1090–1150mm
Overall Width	520mm
Overall Depth	600mm
Seat Height Range	490–580mm (gas lift adjustable)
Seat Width	520mm
Seat Depth	510mm
Backrest Height	520mm
Backrest Width	470mm
Arm Height Range (optional)	630–800mm from floor
Chair Weight	23kg
Features & Construction
Mechanism	Heavy-duty 4-lever ergonomic with seat slide (seat height, seat tilt, back angle, back lock)
Lumbar Support	Pneumatic pump adjustment
Seat Foam	Luxurious heavy-duty moulded foam
Upholstery	Black fabric
Base	Black nylon 5-star spider base (polished aluminium upgrade available)
Castors	50mm hard floor castors (suitable for tiles, timber, vinyl)
Arms	Adjustable arms available as optional extra (height range 630–800mm)
Weight Rating & Certifications
Maximum User Weight	160kg
AFRDI Rating	Level 6 — Severe Commercial Use (load rated to 160kg)
BIFMA	Tested and approved
Warranty	10 Years
Manufacturer	Rapidline

What Does Each Lever Do?

If you haven't used a 4-lever chair before, here's a quick guide:

Lever	What It Controls
Lever 1	Seat height — raise or lower using gas lift
Lever 2	Seat tilt — angle the seat pan forward or backward
Lever 3	Back angle — recline the backrest independently from the seat
Lever 4	Back lock — lock the backrest in your preferred recline position
Seat slide	Seat depth — slide the seat pan forward or back to match your leg length
Lumbar pump	Inflate or deflate the lumbar cushion for targeted lower back support

Add Assembly — Arrive Ready to Sit

Don't want to assemble it yourself? Select "Delivery & Assembly" at checkout and we'll have the chair professionally assembled and delivered ready to use. Available in most capital city metro areas.

Complete Your Workspace

Office Desks — Pair with our Express or Axis desk range for a complete workstation setup
Height Adjustable Desks — Alternate between sitting and standing throughout the day for even better ergonomics
Express Mobile Pedestal — Add under-desk storage to keep your workspace clear
Monitor Arms — Position your screen at the correct eye height to complement your ergonomic chair setup

Ordering chairs for your team? We supply businesses, government departments, and schools across Australia. Request a bulk quote or call us on 1300 679 700 for volume pricing.

Frequently Asked Questions

What does "AFRDI Level 6" mean?

AFRDI (Australian Furnishing Research and Development Institute) tests office chairs for durability and safety. Level 6 is the highest commercial rating — "Severe Commercial Use" — meaning the chair has been tested and approved for heavy daily use in demanding workplace environments. Many government and corporate procurement policies require AFRDI Level 6 certification.

What does "BIFMA Tested" mean?

BIFMA (Business and Institutional Furniture Manufacturers Association) is an international testing standard for office furniture. BIFMA testing covers structural integrity, stability, and durability under commercial use conditions.

Are the armrests included?

Adjustable arms are available as an optional extra — select the version with arms when choosing your options above. If you're not sure, arms are recommended for people who spend long periods at a desk, as they help reduce shoulder and neck strain.

Will the castors work on carpet?

The chair comes standard with 50mm hard floor castors, which are designed for hard surfaces like tiles, timber, and vinyl. They will still roll on low-pile commercial carpet, but for thick or plush carpet you may want to consider a chair mat for easier movement.

How long does assembly take?

Most people can assemble this chair in 15–20 minutes. Alternatively, select "Delivery & Assembly" at checkout and we'll deliver it fully assembled and ready to use.

Is this chair suitable for someone over 100kg?

Yes — the Ergo Air is AFRDI load rated to 160kg. It's specifically designed as a heavy-duty chair for larger or taller users who need extra support and durability through a full working day.

Accreditations:

BIFMA Tested AFRDI Level 6 Approved

Warranty:

Need Help?

Do you have any questions?

Need a quote or more information? Fill out our contact form or call us on 1300 679 700

Are you a school or government organization?

We accept purchase orders. Contact us if you require more information

Deliver & Install

Need your office furniture assembled? Office Stock has a national assembly network available in most metro areas*. Simply select "Delivery & Assembly" as your delivery method in the checkout. Once your furniture is delivered our assembly team will contact you to arrange a suitable assembly time.

*Assembly service available in most capital cities. Enter your post code in the shipping calculator below to view available delivery options to your area.