Pure Enrichment MistAire XL vs Pure Enrichment HUME
In short: The Pure Enrichment MistAire XL costs $20 less; the Pure Enrichment MistAire XL genuinely holds a larger room (246 sq ft against 108 sq ft); the Pure Enrichment HUME costs about $2 less a year in wicks and watts.
| Spec | Pure Enrichment MistAire XL | Pure Enrichment HUME |
|---|---|---|
| Approx. price | ~$60 | ~$80 |
| Type | Ultrasonic | Ultrasonic |
| Mist | cool | cool |
| Rated output | 1 gal/day | 0.44 gal/day |
| Output standard | Computed from the tank and the maker's longest runtime claim — the lowest setting | Computed from the tank and the maker's longest runtime claim — the lowest setting |
| Honest room size | 246 sq ft | 108 sq ft |
| Claimed coverage | 500 sq ft | Not stated |
| Claim vs physics | 2.03× | — |
| Tank size | 1 gal | 0.92 gal |
| Runtime at the claimed room | 12 hr | — |
| Real runtime at full output | — | — |
| Yearly running cost | ~$9 | ~$7 |
| Replaceable media | None — nothing to buy | None — nothing to buy |
| White dust risk | Yes | Yes |
| Humidistat | No | No |
| Noise on low | — | — |
| Top fill | No | Yes |
| Dishwasher-safe tank | No | No |
| App control | No | No |
| Power | 30 W | 25 W |
Highlighted cells are the better number in that row, and only where a direction is unambiguous — more output and more supported room, less noise, cost and price. Honest room size and runtime are computed from each maker’s own published figures; here is the calculation.
Pros and cons
Pure Enrichment MistAire XL
- Publishing a runtime range rather than the best case is a small honesty almost nobody else here manages
- No consumables, so the sticker price is close to the whole cost of owning it
- Light and small enough to move between rooms easily
- Owners report it running reliably for several seasons at a price where that is not guaranteed
- White dust on hard water, with no cartridge sold to stop it
- No humidistat, so the runtime range it honestly prints is also the only control you get
- The 500 sq ft claim contradicts the honest runtime range printed beside it
- Bottom fill, and the tank opening is small
Pure Enrichment HUME
- The tank opening is the whole point and it works - a hand and a cloth reach every surface
- No consumables and no room-size claim to be disappointed by
- Long runtime on low for a tank this size
- Still an ultrasonic with no demineralisation media
- No humidistat and no auto mode; holding a level means switching it off yourself
- $80 for a unit with no sensor, no app and no coverage figure is competing against far better-equipped rivals