Seven Levoits hold 3 to 6 L under 14 in tall. Superior Studio is the exception: 4.5 L at 15.8 in.
Above 6 L, height jumps. Tank size alone won't tell you runtime or room coverage.
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With no preferences selected: Levoit Classic 160 2.5L Top Fill Ultrasonic Humidifier is one option to compare.
Your choices are compared with each model’s product details. A missing or conflicting value stays unknown and cannot satisfy a choice you select. The starting order helps you browse; it does not rate real-world performance.
Source dates appear with each link below. A source date does not confirm today's price or stock.
Levoit Superior™ Studio Smart Evaporative Humidifier: Source 1 ↗ · September 26, 2026
Superior 6000S Smart Evaporative Humidifier: Source 1 ↗ · September 26, 2026
Tank volume changes filling, without settling runtime
Levoit tank capacities span 2.5 to 22.7 L. The Superior Studio has a 4.5 L tank; the larger Superior Smart Evaporative model has a 22.7 L tank. Compare how you will fill and empty the chosen unit before selecting a larger reservoir.
Capacity alone cannot tell you the mist output, suitable room size or time between refills. This comparison reads Levoit’s dimensions and tank volumes without measuring humidity changes in a room.
Look for access above the water tank
Levoit’s Superior Studio stands 15.8 in tall, while the OasisMist tower stands 28.7 in tall. Use length and width alongside height, and allow access for the filling and cleaning steps in the manual.
Try the route to your sink. An external height does not show whether a removable tank will fit beneath your tap or inside your sink.
The larger Superior Smart Evaporative unit is 12.7 in long and 12.7 in wide, so compare both directions on the intended surface.
Resolve the lifting weight and water-care routine
Levoit unit weights range from 2.16 to 13.2 lb. Those figures do not define a water-filled lifting weight here; ask which configuration the maker weighs before planning how to carry the machine.
Read the selected humidifier’s water and maintenance directions, including access to the parts that need cleaning. Keep moisture away from nearby electrical equipment and follow the placement instructions rather than treating tank size as a safety guide.
Before you buy
Does a bigger tank mean it runs longer?
Not necessarily. Runtime depends on how fast a unit puts out moisture as well as how much it holds, and output isn't part of this comparison, so we don't estimate it.
Why do four models have a much higher power rating?
The four are the LV600HH, LV600S, OasisMist 450S and OasisMist 600S. Levoit's titles call the first three warm-and-cool-mist humidifiers; the 600S title doesn't say. The ratings come from Levoit's spec sheets, and we don't have measured draw at each setting. Four of the 11 models are rated at 280 W; the others that give a figure sit between 12 and 30 W.
Will it fit in the exact opening I measured?
The dimensions are the unit itself. Leave extra room to lift out or top up the tank and to let the mist move freely; the Classic 160, for example, is 6.38 x 7.12 x 10.14 in before you add any clearance. Above 6 L, the options are the 10 L OasisMist 1000S tower at 28.7 in and the 22.7 L Superior 6000S at 26.8 in tall and 12.7 in wide.
Levoit Classic 160 2.5L Top Fill Ultrasonic HumidifierView at Levoit
