Pure Enrichment MistAire Review: The Perfect Bedroom Humidifier?

The Pure Enrichment MistAire has earned over 70,000 reviews on Amazon and a near-permanent spot on best-seller lists. At $39.99, it competes directly with the AquaOasis Cool Mist but differentiates itself with a built-in night light, a more compact design optimized for nightstands, and Pure Enrichment's responsive customer support backed by a 5-year warranty.

We tested it for four weeks in a 180 sq ft bedroom to see if it lives up to its reputation.

Design & Build

The MistAire is a compact teardrop shape in white and blue, measuring 7.5 x 7.5 x 10 inches. It is noticeably smaller and lighter than the AquaOasis, making it a better fit for a crowded nightstand. The 1.5-liter tank is top-fill with a twist-off cap, and the base has a soft-touch matte finish that resists fingerprints.

The night light on the front panel offers two brightness settings (soft blue and brighter blue) or can be turned off entirely. The mist dial on the front controls output intensity. Build quality is good for the price — nothing feels cheap, and the tank-to-base connection is secure with no leaking observed.

Performance

In our 180 sq ft bedroom test, the MistAire raised humidity from 30% to 46% in about 3.5 hours on the highest setting. Overnight on medium, it maintained 40-47% RH — right in the sweet spot for comfortable sleep. The smaller 1.5L tank means you will need to refill more often than the AquaOasis (2.2L), but for single-night use, one fill on medium lasts through the night.

The mist output is smooth and consistent. The 360-degree nozzle directs mist where you want it. On the highest setting, there is a visible mist plume about 12 inches high — aim it away from electronics and wooden surfaces.

Noise Levels

The MistAire is very quiet, though marginally louder than the AquaOasis at comparable settings. At low and medium, it blends into the background of a bedroom. No distracting gurgling or bubbling — Pure Enrichment uses a flat-disc ultrasonic element that produces a steady, even output.

Running Costs

No filters to replace. Weekly cleaning with diluted white vinegar is recommended to prevent mineral buildup.

Pros and Cons

Pure Enrichment MistAire vs. AquaOasis Cool Mist

This is the closest head-to-head comparison in the budget humidifier category. The AquaOasis costs $10 less, has a larger 2.2L tank (longer runtime), and is slightly quieter. The MistAire counters with a built-in night light, a more compact footprint for small nightstands, and a 5-year warranty versus the AquaOasis's 1-year warranty. Both deliver comparable humidification performance. Choose based on whether you value the night light and warranty (MistAire) or longer runtime and lower cost (AquaOasis).

The Verdict

The Pure Enrichment MistAire is an excellent bedroom humidifier that earns its best-seller status. The built-in night light is a genuinely useful feature for bedrooms, the compact size fits anywhere, and the 5-year warranty provides long-term peace of mind. The smaller tank is the only meaningful trade-off compared to the AquaOasis.

If you want the cheapest effective humidifier, the AquaOasis saves you $10. If you want a bedroom-optimized humidifier with a night light and excellent warranty coverage, the MistAire is worth the modest premium.

Rating: 4/5