Humidifiers: Levoit LV600S Smart Hybrid Ultrasonic Humidifier is our No-Brainer pick

Start with room size and cleaning

Match the humidifier to your room size, and choose a top-fill tank with a wide opening, because every humidifier needs regular cleaning. An auto mode that holds a set humidity helps avoid damp windows and walls.

Levoit LV600S Smart Hybrid Ultrasonic Humidifier

The Levoit LV600S is the humidifier most people should get. Its 6-liter tank fills from the top, it can run warm or cool mist, and an auto mode holds the humidity level you set. Levoit lists coverage for medium to large rooms and app and voice control. It is bigger than most, so measure your nightstand or floor space.

Levoit Classic 300S Smart Ultrasonic Humidifier

The Levoit Classic 300S is nearly as capable and a little simpler. It has a 6-liter top-fill tank, cool mist only, a built-in night light and app control, and Levoit lists it as quiet enough for a bedroom. Its touch controls take a minute to learn, but it holds a steady humidity well.

Dreo HM311S Smart Humidifier

The Dreo HM311S is the budget pick for a bedroom or office. Its 4-liter tank is smaller, but it still has an auto humidity mode, a night light and app and voice control. Dreo lists a runtime of up to about 32 hours on a full tank. It suits smaller rooms best.

Choose by room and features

Pick the LV600S for larger rooms or if you want warm mist. Pick the Classic 300S for a quiet bedroom unit. Pick the Dreo HM311S for a smaller room at a lower cost.

What stands out

• All three have an auto humidity mode
• All three fill from the top
• The LV600S can run warm or cool mist

Watch out for

• Clean and dry the tank often, following the maker's guide
• Ultrasonic models can leave white dust with hard water; distilled water helps
• Too much humidity can cause condensation; aim for a moderate level

Before you buy

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Choose by room size, then pick the features you will use.

Think about the fit: Choose by room size, then features.

Check before buying: Room size, tank size, ease of cleaning and noise

Quick answers