Herman Miller Aeron vs Mirra 2
A side-by-side reading of the manufacturers' own European data. Where one chair's published spec is better, it is marked; where data is missing, we say so.
Updated By The Best Office Chairs Europe editorial team24 sources
The short answer
The Mirra 2 offers seat depth as an option, which the Aeron does not have at all; the Aeron answers fit with sizes.
On published specifications, the Aeron leads on third-party EPD, Spec Index; the Mirra 2 leads on seat depth adjustment, lowest official price found.
Herman Miller publishes a Europe-scope EPD and a European plant for the Aeron but not for the Mirra 2.
Side by side
| Specification | Herman Miller Aeron | Herman Miller Mirra 2 |
|---|---|---|
| Seat height | 406–521 mm | 406–521 mm |
| Seat-height span | 115 mm | 115 mm |
| Lowest seat (shorter users) | 406 mm | 406 mm |
| Highest seat (taller users) | 521 mm | 521 mm |
| EN 1335 Types spanned | Type B, Type C | Type B, Type C |
| Seat depth | 432 mm | 413–457 mm |
| Seat depth adjustment | Fixed | Option |
| Max. user weight | 159 kg | 159 kg |
| Warranty | 12 years | 12 years |
| EN 1335 declared | No | No |
| Third-party EPD | Yes | No |
| Made for Europe in | Melksham, United Kingdom | not published |
| Made inside the EU | No | not published |
| Lowest official price found | £1,219 (United Kingdom) | £1,041 (United Kingdom) |
| Spec Index | 60/100 | 53/100 |
Fit: which bodies each chair suits
Seat height decides whether your feet reach the floor with your thighs level. The bars show each chair's published range against the four EN 1335-1:2020 Types. Work out your own target with the office chair height calculator.
Adjustments
| Adjustment | Herman Miller Aeron | Herman Miller Mirra 2 |
|---|---|---|
| Seat depth adjustment | Fixed | Option |
| Backrest height adjustment | not published | not published |
| Lumbar support | Option | Option |
| Armrests | Option (adjustment type not published) | Option (adjustment type not published) |
| Recline tension | not published | not published |
| Recline lock | Several positions | Several positions |
| Forward seat tilt | Option | Option |
| Headrest | not published | not published |
Prices in Europe
Official brand-store prices by country, including VAT, for the configuration each store lists. Checked on the dates shown.
| Market | Aeron | Mirra 2 |
|---|---|---|
| Belgium | €1,598 | €1,397 |
| Germany | €1,573 | €1,373 |
| Denmark | 12,400 DKK | 10,800 DKK |
| Spain | €1,598 | €1,397 |
| Finland | €1,708 | €1,492 |
| France | €1,586 | €1,385 |
| Netherlands | €1,598 | €1,397 |
| Sweden | 18,700 SEK | 16,300 SEK |
| United Kingdom | £1,219 | £1,041 |
For euro conversions, VAT-free comparisons and every market at once, use the EU price comparator.
Some links on this page are commercial.
Spec Index
Points for what each maker publishes, using the same rules for every chair. A missing figure scores zero, so a low score can mean "not published" rather than "worse".
| Criterion | Herman Miller Aeron | Herman Miller Mirra 2 |
|---|---|---|
| Adjustability / 40 | 12 | 16 |
| Seat-height range vs EN 1335 type A / 20 | 19 | 19 |
| Load and standards disclosure / 15 | 8 | 8 |
| Warranty / 10 | 10 | 10 |
| Environmental disclosure / 15 | 11 | 0 |
| Spec Index / 100 | 60 | 53 |
More detail
Sources
- Herman Miller Store: Aeron dimensions (size B seat height 16–20½ in): store.hermanmiller.com/office-chairs/aeron-chair/2195348.html
- Herman Miller UK - Aeron: www.hermanmiller.com/en_gb/products/seating/office-chairs/aeron-chair/
- Aeron EMEA product sheet en-GB (PDF): www.hermanmiller.com/content/dam/hermanmiller/documents/product_literature/product_sheets/
- Aeron Aluminium Base - EU EPD-IES-0028576: www.environdec.com/library/epd28576
- Herman Miller UK - Mirra 2: www.hermanmiller.com/en_gb/products/seating/office-chairs/mirra-2-chair/
- Mirra 2 EMEA product sheet en-GB (PDF): www.hermanmiller.com/content/dam/hermanmiller/documents/product_literature/product_sheets/
- Herman Miller Store (Belgium & Luxembourg) (BE): eustore.hermanmiller.com/products/aeron-office-chair
- Herman Miller Store DE (DE): destore.hermanmiller.com/products/aeron-office-chair
- Herman Miller Store FR (FR): frstore.hermanmiller.com/products/aeron-office-chair
- Herman Miller Store NL (NL): nlstore.hermanmiller.com/products/aeron-office-chair
- Herman Miller Store ES (ES): esstore.hermanmiller.com/products/aeron-office-chair
- Herman Miller Store FI (FI): fistore.hermanmiller.com/products/aeron-office-chair
- Herman Miller Store SE (SE): sestore.hermanmiller.com/products/aeron-office-chair
- Herman Miller Store DK (DK): dkstore.hermanmiller.com/products/aeron-office-chair
- Herman Miller Store UK (UK): ukstore.hermanmiller.com/products/aeron-office-chair
- Herman Miller Store (Belgium & Luxembourg) (BE): eustore.hermanmiller.com/products/mirra-2-graphite-triflex-office-chair
- Herman Miller Store DE (DE): destore.hermanmiller.com/products/mirra-2-graphite-triflex-office-chair
- Herman Miller Store FR (FR): frstore.hermanmiller.com/products/mirra-2-graphite-triflex-office-chair
- Herman Miller Store NL (NL): nlstore.hermanmiller.com/products/mirra-2-graphite-triflex-office-chair
- Herman Miller Store ES (ES): esstore.hermanmiller.com/products/mirra-2-graphite-triflex-office-chair
- Herman Miller Store FI (FI): fistore.hermanmiller.com/products/mirra-2-graphite-triflex-office-chair
- Herman Miller Store SE (SE): sestore.hermanmiller.com/products/mirra-2-graphite-triflex-office-chair
- Herman Miller Store DK (DK): dkstore.hermanmiller.com/products/mirra-2-graphite-triflex-office-chair
- Herman Miller Store UK (UK): ukstore.hermanmiller.com/products/mirra-2-graphite-triflex-office-chair
All sources checked 20 October 2026. Where a manufacturer does not publish a value, we say so rather than estimate it.
Cite this page
Best Office Chairs Europe, “Herman Miller Aeron vs Mirra 2”, https://bestofficechairs.eu/compare/aeron-vs-mirra-2/, updated .