# Which office chair offers the quietest operation? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

Which office chair offers the quietest operation?

## Products

### Autonomous ErgoChair Ultra 2
```yaml
product: autonomous-ergochair-ultra-2
brand: Autonomous
price_gbp: 331.56
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
seat_depth: 18 - 20.5 in
seat_width: 18 in
backrest_height: 23 in
adjustable_armrests: 4D
maximum_weight_capacity: 320 lbs
```

- **Price:** £331.56 [^1]
- **Summary:** The ErgoChair Ultra 2 is an ergonomic office chair with a flexing mesh backrest, four-layer seat, synchro-tilt recline, and 4D armrests. Its adjustable seat depth and 320 lb weight capacity suit users seeking breathable support for long work sessions.
- **Ideal For:** It suits quiet operation because its welded frame and Italian Donati tilt mechanism are designed to eliminate joint slack and withstand 100,000 tilt cycles, reducing sources of creaking over time.

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## References & Sources
[^1]: Autonomous, accessed 2026-09-13. https://www.autonomous.ai/office-chairs/autonomous-chair-ultra-v2