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Spill-Free Refills
No need to flip anything over—pour water directly into the top-fill tank and reach inside the wide opening to clean with ease.
With VeSync, you can control your home’s humidity levels even when you’re away.
Create Your Own Greenhouse
Help your indoor plants thrive with our new feature on the VeSync app. With automated scheduling, you can take care of your plants with ease—no green thumb required.
Plant species identification
Watering schedules
Fertilizing schedules
Care reminders
Plant species identification
Watering schedules
Fertilizing schedules
Care reminders
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Common Questions
What makes the Levoit Classic 300S 'smart'?
The 300S features Wi-Fi connectivity, app control (VeSync app), voice control with Alexa/Google Assistant, and automatic humidity control (Auto Mode) that maintains your desired humidity level without manual adjustment.
How does Auto Mode work on the Levoit Classic 300S?
The built-in humidistat continuously monitors room humidity. In Auto Mode, the unit automatically adjusts mist output to maintain your set humidity level (e.g., 50%), turning on when it drops 5% below and off when reached. No manual intervention needed.
How long does the Levoit Classic 300S run on one fill?
The 6-liter tank provides up to 60 hours of runtime on the lowest setting. Even on medium settings, you can easily get 2-3 days without refilling, making it ideal for busy households.
Is the Levoit Classic 300S good for dry climates like Colorado or Arizona?
Excellent choice! The large 6L capacity and auto humidity control are perfect for extremely dry climates. Many Reddit users in Colorado specifically praise the 300S as a 'game changer' for maintaining comfortable humidity year-round.
Can I control the Levoit Classic 300S remotely?
Yes! The VeSync app lets you turn it on/off, adjust mist levels, set schedules, and monitor humidity from anywhere. Perfect for turning on the humidifier before you get home.
Does the Levoit Classic 300S work without Wi-Fi?
Absolutely! You can use all basic functions via the touch panel on top without ever connecting to Wi-Fi. Smart features are optional, not required.
What room size is the Levoit Classic 300S suitable for?
The 300S covers up to 505 square feet, making it ideal for large bedrooms, master suites, living rooms, or open-concept spaces.
Is the Levoit Classic 300S easy to clean?
Yes! The top-fill design and wide opening make cleaning straightforward. While it has more parts than the simpler 160 model, all components are accessible and can be cleaned with basic vinegar solution.
How quiet is the Levoit Classic 300S?
Very quiet at 28dB on low settings, comparable to ambient room noise. Many users report it's silent enough for nurseries and bedrooms. Some notice a slight hum on high settings but find it acceptable as white noise.
Can I use essential oils in the Levoit Classic 300S?
Yes! The 300S includes an aroma box where you can add essential oil pads (sold separately). This keeps oils away from the water tank, preventing damage while allowing aromatherapy.
Does the Levoit Classic 300S prevent white dust?
White dust prevention requires using distilled or purified water, not tap water. The 300S itself doesn't filter minerals, so water quality determines white dust presence.
Can I turn off the display lights on the Levoit Classic 300S?
Yes! The 300S has a display-off mode that turns off all indicator lights while the unit continues running. Perfect for complete darkness during sleep.
What's the difference between sleep mode and auto mode on the 300S?
Sleep Mode reduces mist output to the lowest level and dims/turns off the display for quiet, dark operation. Auto Mode maintains your set humidity level automatically, adjusting mist as needed. You can combine both features.
Is the humidity sensor on the 300S accurate?
Generally accurate within 5%. Some users note it can be affected by proximity to the mist output. For best results, place the unit 3-4 feet from walls and beds, allowing proper air circulation around the sensor.
Does the Levoit Classic 300S have a night light feature?
Yes, the 300S includes a soft night light that can be toggled on/off independently. It provides gentle ambient lighting without being too bright for sleep.
Can I schedule the Levoit Classic 300S to turn on automatically?
Yes! Through the VeSync app, you can create custom schedules for the humidifier to turn on/off at specific times or maintain certain humidity levels during different parts of the day.
What warranty does the Levoit Classic 300S have?
Levoit provides a 2-year warranty covering manufacturing defects. Customer support is US-based in California and widely praised for responsiveness.
Is the Levoit Classic 300S worth the extra cost over the 160?
If you have a large room, want 'set and forget' convenience, need longer runtime between refills, or desire smart home integration, the 300S is worth it. For small rooms and simple operation, the 160 offers better value.