Which is better for a bedroom?

The Honeywell. Its 0.5-gallon tank runs up to 24 hours and the timer lets it shut off overnight. The Lasko's 400 ml tank needs refilling every few hours.

Which is better for a desk or travel?

The Lasko. It is USB-powered, weighs 0.54 lb and stands 5.4 inches tall, so it fits a desk or a bag. The Honeywell needs a wall outlet and about 8 inches of space.

Is the Honeywell worth the extra $15?

Yes if you want fewer refills and a timer. At $38.77 versus $23.68 on November 3, 2026, you pay about $15 for roughly four times the tank capacity.

Which one is quieter?

The Honeywell is rated 10 dB, though reviewers still note some motor sound. The Lasko lists no sound rating, and ultrasonic units of this size are generally quiet but not silent.

Do either need filters?

No. Both are filter-free ultrasonic units, so you only rinse the tank and base.

Which lasts longer per fill?

The Honeywell, by a wide margin. It is rated for up to 24 hours; the Lasko's 400 ml tank lasts only a few hours, less on its higher mist settings.

Lasko Ultrasonic Personal Cool Mist Humidifier vs Honeywell Small Compact Ultrasonic Mini Cool Mist Humidifier

Buy the Lasko if you want the cheapest way to add mist to a desk, nightstand or hotel room, and you can live with refilling a 400 ml tank every few hours. Buy the Honeywell if you want a bigger 0.5-gallon tank, a 24-hour timer and directional mist for a small bedroom, and the extra $15 is worth it. On November 3, 2026 the Lasko is $23.68 at Best Buy and the Honeywell is $38.77 at Amazon.

Today the Lasko Ultrasonic Personal Cool Mist Humidifier costs $15.09 less at its best price.

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