Specifications
| Model number | 402 |
|---|---|
| Chair type | Deluxe PU cleanroom desk-height chair |
| Seat dimensions | 460 mm wide × 500 mm deep |
| Overall height | 900–1030 mm |
| Seat height adjustment | 410–540 mm |
| Base dimensions | 660 × 660 mm polished aluminium |
| Weight capacity | 20 stone / 127 kg |
| Gas lift | 20-stone-rated gas strut |
| Seat material | Moulded polyurethane (wipe-clean, cleanroom-suitable) |
| Base options | Standard castors as standard; lock on/off castors incur a price uplift |
| Mechanism | 2-lever seat-height and back-rake adjustment |
| Guarantee | 5 years (2 years in shift / 24-7 use) |
| Delivery | UK mainland included. Scottish Highlands & Northern Ireland on request. |
Description
The 402 is a desk-height cleanroom chair with a moulded polyurethane seat — the seated partner to the bench-height 401, for controlled environments, gowning areas and seated positions in classified space around 720–750 mm. Purchased over 1,438 times to date.
Cleanroom seating has a solid, sealed seat with no fabric to shed particles, and is built to survive routine wipe-down and decontamination. For standing benches around 900 mm in the same facility, specify the bench-height 401; for static-sensitive work inside a cleanroom, use the ESD anti-static range instead. The lab chair height guide confirms the height class.
Care
The moulded polyurethane seat wipes clean and tolerates routine laboratory cleaning agents. No fabric, no seams, nothing to trap particles.
Feet or castors
Feet and castor options are selectable above. Castors carry a price uplift — soft-tyre castors are recommended for hard or vinyl flooring, and lock-off or lock-down castors hold the chair in position where it must not move.
Accessories
Available to order with seat tilt. Priced individually — see the accessories page or ask on your quote.
Who uses the 402
Supplied to controlled environments at Oxford Instruments Plasma Technology. The cleanroom range is also in daily use at McLaren Racing, Roche, Guy’s & St Thomas’ NHS and Baxter Healthcare.
Ordering
Purchase orders accepted, VAT invoice supplied. Volume pricing from 4 units. Delivery included to mainland Britain. UK support and spares available — we have been supplying laboratory and technical seating since 1986.
Frequently Asked Questions
- What bench height does the 402 suit?
- The 402 is a desk-height chair. Its seat adjusts from 410mm to 540mm, which suits seated / desk-height benches around 750 mm high. If you’re not sure, send us your bench height and we’ll confirm the right model.
- What is the weight capacity of the 402?
- The 402 is fitted with a 20-stone gas strut, which is approximately 127 kg.
- Is the 402 suitable for cleanrooms?
- Yes. The 402 is built for cleanrooms, with a moulded polyurethane seat, smooth wipe-clean surfaces and a polished aluminium base in place of the standard nylon base. It suits ISO-classified cleanrooms, GMP production areas and pharma or biotech labs. For static-sensitive cleanroom work, see our ESD range.
- Can I have feet or castors on the 402?
- The 402 comes with standard castors as standard. Lock on/off castors are available for a price uplift. Soft-tyre castors are recommended for hard or vinyl flooring; please also consider the safety requirements of your working environment when choosing castors.
- What guarantee and delivery apply to the 402?
- UK mainland delivery is included in the price. Delivery to the Scottish Highlands and Northern Ireland is quoted on request. Every chair comes with a 5-year guarantee against normal wear and tear from the date of delivery, used under normal conditions during a conventional working day. In a shift or 24/7 working environment the guarantee is 2 years from the date of delivery. Purchase orders accepted from schools, colleges, universities, NHS trusts, government organisations and registered businesses. VAT invoice supplied. On finance systems we may appear as Mark Finn Lab Furniture or Lab Tables.

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