Pure Enrichment MistAire XL vs Pure Enrichment HUME
In short: The Pure Enrichment HUME costs $10 less; the Pure Enrichment HUME genuinely holds a larger room (468 sq ft against 246 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 | ~$50 |
| Type | Ultrasonic | Ultrasonic |
| Mist | cool | cool |
| Rated output | 1 gal/day | 1.9 gal/day |
| Output standard | Computed from the tank and the maker's longest runtime claim — the lowest setting | Maker's published output rate |
| Honest room size | 246 sq ft | 468 sq ft |
| Claimed coverage | 500 sq ft | 475 sq ft |
| Claim vs physics | 2.03× | 1.01× |
| Tank size | 1 gal | 0.92 gal |
| Runtime at the claimed room | 12 hr | 11 hr |
| Real runtime at full output | — | 12 hr |
| 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
- Nothing has to be bought to run it; the optional decalcification cartridge is $11.99 every six months
- Light and small enough to move between rooms easily
- White dust on hard water unless you add Pure Enrichment's decalcification cartridge, changed every six months
- No humidistat, so the runtime range it honestly prints is also the only control you get
- Holding the 500 sq ft it claims takes the high setting, which empties the gallon tank in about ten hours
- 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
- Its 475 sq ft claim is almost exactly what its published 300 mL/hr supports
- Long runtime on low for a tank this size
- Still an ultrasonic: nothing in the box stops white dust on hard water unless you add the $9.99 cartridge
- No humidistat and no auto mode; holding a level means switching it off yourself
- No sensor and no app at $50, where the Dreo HM311S has both
- Pure Enrichment prints two room sizes on the same page - 475 sq ft in its copy, 270 in its spec table