LEVOIT Classic 200S 4L Smart Humidifier: features, specs and who it suits

The LEVOIT Classic 200S is a 4-litre ultrasonic cool mist humidifier with a smart app. It is sized for a bedroom or nursery and combines humidifying with a small essential oil diffuser. The listing is for the 120V North American model.

Tank and run time

The tank holds 4 L (1.05 gal). LEVOIT says it can humidify a room for up to five nights and run up to 40 hours on the low mist setting. Run time is always a best case: higher mist levels use water faster. The unit measures 6.0 x 8.0 x 14.0 inches and weighs 3.5 lb (about 1.6 kg).

Mist output and nozzles

Maximum mist output is listed at up to 300 ml/h. Two rotating nozzles spread the mist around the room, and a one-touch control selects the mist level. Ultrasonic humidifiers use a vibrating plate to create fine droplets, and they are typically quiet. LEVOIT describes the unit as whisper-quiet, with lights that can be turned off.

Smart auto mode and the app

You set a target humidity, and a built-in sensor adjusts output to hold it. The app lets you switch the unit on from elsewhere so the room is ready on arrival, and offers a schedule and timer. As with most small units, the sensor is a guide rather than a precise reading.

Aroma tray

The 2-in-1 design includes a tray for essential oils, so the same unit can add scent while humidifying. Follow the manual on which oils and how much to use.

Filling and placement

Fill the tank through its cap, not by pouring water into the base. LEVOIT's notes say to align the arrow on the cap with the lock on the tank to avoid leaks, and to place the unit on an elevated, level surface such as a nightstand or table. A cleaning brush is pre-installed on the base. The unit shuts off automatically when the water runs out.

In the box

One Classic 200S humidifier, a cleaning brush and a user manual.

Who it suits

It suits bedrooms and small to medium rooms where a quiet unit with remote control is useful, and where occasional refilling is fine.

What to check before you buy

• Room size: the listing doesn't give a coverage figure, so judge by output and room size.
• Voltage: the listing says 120V.
• Surface: you'll need a stable, water-safe surface at a raised height.
• Water: consider distilled water and how you'll handle mineral build-up.
• Wi-Fi: confirm app compatibility with your network.
• Cleaning: plan on regular cleaning, as described in the manual.

The short version

• A 4 L ultrasonic cool mist humidifier for bedrooms.
• Up to 40 hours on low, and up to 300 ml/h of mist.
• Auto mode, app control, schedule and timer.
• Essential oil tray, dual rotating nozzles, auto shut-off.
• 120V, 3.5 lb.

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