Independent testing
How much independent testing exists for each office chair
Of the 8 office chairs we track, 4 have been physically measured by at least one independent lab and 1 by three or more. Below is every one, ordered by how much independent hands-on evidence stands behind it — densest first.
A coverage record, not a ranking of which is best.
| Product | Independent labs | Metrics measured | Outlets on record |
|---|---|---|---|
| ErgoChair Pro | 3 | 1 | 3 |
| Doro C300 | 2 | 5 | 2 |
| Branch Ergonomic Chair | 1 | 1 | 3 |
| Ignition 2.0 Task Chair | 1 | 1 | 2 |
| Aeron Chair | 0 | 0 | 1 |
| Embody Chair | 0 | 0 | 2 |
| Gesture Chair | 0 | 0 | 3 |
| Leap Chair V2 | 0 | 0 | 2 |
Each figure is a count of what independent testers actually did — how we count. A low count means little independent evidence has been gathered yet, never that a product is worse. See also the Office Chairs buying guide and the reviewers we cite.