Mill
Mill Essential
$999
Best Electric Composters · head-to-head
Mill Essential vs Airthereal Revive R500
A sourced, side-by-side comparison. Airthereal Revive R500 is cheaper at $349.99. Every spec and price links to its source.
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Airthereal
Airthereal Revive R500
$349.99Cheaper
Released 2023
Which is better: the Mill Essential or Airthereal Revive R500?
The Airthereal Revive R500 wins 1 of the 1 specs we compare head to head; the other wins 0. The Airthereal Revive R500 is the cheaper at $349.99. The Airthereal Revive R500 both leads on specs and costs less — the straightforward pick.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Mill Essential | Airthereal Revive R500 |
|---|---|---|
| US price | $999 | $349.99 |
| Brand | Mill | Airthereal |
| Released | — | 2023 |
| Capacity liters | 6.5 | 2.5 |
| Cycle time hours | overnight (continuous, automatic) | 4 |
| Noise level (dB) | 42 | — |
| Power watts | 540 | 500 |
| Carbon filter | — | Yes |
| Bucket dishwasher safe | — | Yes |
| Weight (kg) | 20.41 | 7.62 |
| Volume reduction percent | 80 | 90 |
| Dimensions (in) | 23 x 17 x 14 (H x W x D) | 12.5 x 10.0 x 12.5 |
Sources — Mill Essential: mill.com (verified 2026-08-01). Airthereal Revive R500: airthereal.com (verified 2026-08-01).
What's the difference between the Mill Essential and Airthereal Revive R500?
Where the two actually differ on the specs we track (6 of 9). Matching specs are omitted.
- Capacity liters: Mill Essential 6.5 vs Airthereal Revive R500 2.5
- Cycle time hours: Mill Essential overnight (continuous, automatic) vs Airthereal Revive R500 4
- Power watts: Mill Essential 540 vs Airthereal Revive R500 500
- Weight (kg): Mill Essential 20.41 vs Airthereal Revive R500 7.62
- Volume reduction percent: Mill Essential 80 vs Airthereal Revive R500 90
- Dimensions (in): Mill Essential 23 x 17 x 14 (H x W x D) vs Airthereal Revive R500 12.5 x 10.0 x 12.5