Vicks V750 vs Levoit LV600S

For most buyers choosing between these models, pick the Levoit LV600S for selectable cool/warm ultrasonic mist, a humidity target and top-access refilling. Pick the Vicks V750 if you specifically want a filter-free steam mechanism and a simple high/low switch, and can accommodate its hot-steam placement and cooling requirements. The important warm mist vs cool mist humidifier distinction here is boiling water versus ultrasonic mist with optional heat. (LV600S manual, V750 manual)

Quick picks and comparison

These are manufacturer specifications, not measured results. Runtime figures are low-setting claims; do not compare them as maximum-output endurance.

Compare specifications and all conditions

Choose it for

Vicks V750

Simple steam operation

Levoit LV600S, US model LUH-A602S-WUS

Mist choices and humidity control

Mechanism

Vicks V750

Boiling chamber; steam mixes with dry air in the chimney

Levoit LV600S, US model LUH-A602S-WUS

Hybrid ultrasonic; separate mist and heat controls

Tank

Vicks V750

1 gallon

Levoit LV600S, US model LUH-A602S-WUS

6 L / 1.58 gal

Refill handling

Vicks V750

Lift tank; unscrew cap underneath; fill with cool water

Levoit LV600S, US model LUH-A602S-WUS

Remove top cover; lift tank; fill with room-temperature water

Output choices

Vicks V750

High or low

Levoit LV600S, US model LUH-A602S-WUS

Low, medium or high mist; heat off or low, medium or high heat

Maximum mist output

Vicks V750

Not quantified in the cited V750 documents

Levoit LV600S, US model LUH-A602S-WUS

Cool: 300 mL/h; warm: 550 mL/h

Claimed runtime

Vicks V750

Up to 24 hours per fill on low

Levoit LV600S, US model LUH-A602S-WUS

50 hours on low mist; environment affects duration

Humidity control

Vicks V750

Manual adjustment; maker recommends a separate hygrometer

Levoit LV600S, US model LUH-A602S-WUS

Built-in sensor; selectable target with automatic stop/restart

Electrical documentation

Vicks V750

120V, 60 Hz; wattage not stated in this manual

Levoit LV600S, US model LUH-A602S-WUS

AC 120V, 60Hz; rated power 280W; no separate mode wattages given

Room coverage

Vicks V750

Maker calls it “Medium-Large”; no numerical area here

Levoit LV600S, US model LUH-A602S-WUS

Maker's effective range: 430–753 sq ft

Published sound figure

Vicks V750

No dB figure in the cited documents

Levoit LV600S, US model LUH-A602S-WUS

Below 28 dB on low cool mist; below 40 dB on high warm mist

Full comparison table ↔

Swipe to compare. Row labels stay visible.

What matters	Vicks V750	Levoit LV600S, US model LUH-A602S-WUS
Choose it for	Simple steam operation	Mist choices and humidity control
Mechanism	Boiling chamber; steam mixes with dry air in the chimney	Hybrid ultrasonic; separate mist and heat controls
Tank	1 gallon	6 L / 1.58 gal
Refill handling	Lift tank; unscrew cap underneath; fill with cool water	Remove top cover; lift tank; fill with room-temperature water
Output choices	High or low	Low, medium or high mist; heat off or low, medium or high heat
Maximum mist output	Not quantified in the cited V750 documents	Cool: 300 mL/h; warm: 550 mL/h
Claimed runtime	Up to 24 hours per fill on low	50 hours on low mist; environment affects duration
Humidity control	Manual adjustment; maker recommends a separate hygrometer	Built-in sensor; selectable target with automatic stop/restart
Electrical documentation	120V, 60 Hz; wattage not stated in this manual	AC 120V, 60Hz; rated power 280W; no separate mode wattages given
Room coverage	Maker calls it “Medium-Large”; no numerical area here	Maker's effective range: 430–753 sq ft
Published sound figure	No dB figure in the cited documents	Below 28 dB on low cool mist; below 40 dB on high warm mist

What matters	Vicks V750	Levoit LV600S, US model LUH-A602S-WUS
Choose it for	Simple steam operation	Mist choices and humidity control
Mechanism	Boiling chamber; steam mixes with dry air in the chimney	Hybrid ultrasonic; separate mist and heat controls
Tank	1 gallon	6 L / 1.58 gal
Refill handling	Lift tank; unscrew cap underneath; fill with cool water	Remove top cover; lift tank; fill with room-temperature water
Output choices	High or low	Low, medium or high mist; heat off or low, medium or high heat
Maximum mist output	Not quantified in the cited V750 documents	Cool: 300 mL/h; warm: 550 mL/h
Claimed runtime	Up to 24 hours per fill on low	50 hours on low mist; environment affects duration
Humidity control	Manual adjustment; maker recommends a separate hygrometer	Built-in sensor; selectable target with automatic stop/restart
Electrical documentation	120V, 60 Hz; wattage not stated in this manual	AC 120V, 60Hz; rated power 280W; no separate mode wattages given
Room coverage	Maker calls it “Medium-Large”; no numerical area here	Maker's effective range: 430–753 sq ft
Published sound figure	No dB figure in the cited documents	Below 28 dB on low cool mist; below 40 dB on high warm mist

Sources: V750 product specifications and FAQ, V750 manual and LV600S US manual.

• Yes: V750: steam from a boiling chamber; high/low operation
• Yes: LV600S: selectable cool/warm mist and a humidity target
• Partly: LV600S: plan for low-mineral water and cleaning, whichever mist setting you choose
• No: Neither: a substitute for checking condensation and maintaining the tank

For the wider technology decision, see evaporative vs ultrasonic humidifiers. Our best humidifiers guide covers other mechanisms and sizes.

Best for controls and refill access: Levoit LV600S

The LV600S is our default recommendation because it combines a larger tank with a target-humidity control. Its physical buttons handle mist, heat, humidity, timer and display settings; an app is optional for those functions. The manual's refill procedure removes the top cover and lifts out the tank, avoiding the V750's underside cap. Neither manual instructs filling with hot water. (Levoit, Vicks)

Set a humidity target and it stops misting when that target is reached, restarting when humidity drops 5 percentage points below it. That control stops output rather than increasing mist strength to reach the target faster. VeSync adds remote control and schedules, with secure 2.4 GHz Wi-Fi required for setup. (LV600S controls and setup)

There is a significant winter caveat. The manual says Sleep Mode turns the display off and automatically controls mist to maintain 50–60% RH, initially switching warm mist off. It separately offers a custom humidity target from 40% to 80%. Those are appliance settings, whereas EPA says not to humidify above 50%. For winter use, we recommend a custom target below that ceiling and checking the room; the display can be switched off separately. (LV600S manual)

Noise and power: Levoit's low-cool and high-warm sound figures refer to different modes, so they do not establish how it sounds beside the V750. Its 280W rating is not documented as constant consumption in every setting. We cannot substantiate a cool-only wattage, an electricity-cost saving or a measured quietness winner from these documents.

See the LV600S at Levoit.

Best for a simple steam mechanism: Vicks V750

The V750 feeds water into a boiling chamber, then mixes steam with dry air in the chimney. Vicks explicitly says it has no fan: high and low change the heating output. No fan does not establish silence. The product page also lists an empty-tank shutoff and a soft-glow night light. (Vicks mechanism and controls, manual)

Refilling means lifting the tank with both hands and opening its bottom cap. After an empty-tank indication, the manual's reset procedure says to switch off, wait 15 minutes, refill and restart. For moving, removing components or cleaning, it instead specifies 20–30 minutes after switching off and unplugging. The refill reset is not a dismantling instruction. (V750 instructions)

Its humidity advice also needs context: Vicks calls 40–60% comfortable, while EPA's humidifier guidance says not to exceed 50%. We use EPA's ceiling for this comparison and recommend watching a hygrometer and windows rather than leaving the high setting running by habit. Vicks itself says to switch off when condensation appears. (Vicks, EPA)

See the V750 at Vicks.

White dust versus scale: choose your water routine

The LV600S manual warns that tap water may leave white dust and recommends purified water. Its absorption pads address mineral buildup inside the unit, especially on the heating element; that is not a promise to remove airborne mineral dust. We would buy it only with a workable low-mineral-water routine. Selecting warm mist does not remove the manual's water guidance. (Levoit filling and absorption pads)

EPA recommends low-mineral water, including distilled water, and says steam vaporizers are not expected to disperse substantial minerals. That gives the V750 a mechanism-based advantage if mineral white dust is your deciding concern. It still accumulates scale: its troubleshooting table identifies deposits on the heating element or tray as a possible cause of reduced mist. The heating chamber still needs attention. (EPA, V750 maintenance)

Cleaning: what you must actually take apart

Both manuals describe weekly cleaning; EPA recommends emptying, drying and refilling portable units daily and cleaning every third day. Our recommendation is to follow that more frequent schedule while using each maker's model-specific cleaning method. Runtime does not replace water changes. (Vicks, Levoit, EPA)

V750: switch off, unplug and cool for 20–30 minutes. Empty the tank, release the chimney and remove the tray. The scale-removal instructions specify 1 cup of vinegar for the tank/base step, a 15–20-minute heating-element soak, gentle brushing and rinsing until the solution's smell is gone. Follow the manual's separate disinfecting stage after scale removal; consult its directions for that solution. Do not immerse the base. (V750 cleaning instructions)

LV600S: unplug and let it cool completely after warm-mist use. Its procedure removes the tank's mist channel/tube and water filter, plus the base's float, noise silencer, absorption pad and aroma box. For descaling, follow the reconfiguration in the manual: leave the mist tube/channel in place, add 3 US cups / 710 mL of distilled white vinegar to the tank, swish, seat it on the base and soak 15–20 minutes. The specified loose parts soak separately; use the soft cloth/brush, rinse away vinegar and dry before reassembly. (LV600S cleaning instructions)

Dishwasher difference: Levoit says no part is dishwasher-safe. Vicks permits only the medicine cup, removable tray and mist chimney on the top rack below 70°C/158°F, with no detergent or soiled dishes; the main housing and tank are excluded. (Vicks, Levoit)

Placement and a separate humidity check

The V750 manual specifies a firm, flat, waterproof surface at least four feet from bedside and twelve inches from the wall, with the appliance and cord beyond children and pets. It calls for a direct wall outlet, without an extension cord or power strip. Levoit specifies a hard, flat, water-resistant surface at least 12 inches from walls, away from direct floor/carpet placement, with mist directed away from furnishings and its aroma-box sensor. Warm mist may be hot on either machine. (Vicks, Levoit)

Optional companion: TempPro TP50. This standalone temperature/humidity display includes high/low records, useful for checking the room independently of the LV600S sensor or the V750 switch. Our indoor humidity and hygrometers guide explains placement and interpretation. (TempPro specifications)

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Winter buying checklist: exact models and complete kits

Check the label and contents before choosing a holiday bundle:

• LV600S: this comparison covers LUH-A602S-WUS, AC 120V, 60Hz. The documented kit includes three aroma pads, three absorption pads and two water-filter sponges, with one of each preinstalled, plus a cleaning brush. Replace pads if they remain stiff after cleaning; the manual directs buyers to official Levoit replacements and customer support.
• LV600HH: a separate model. Its manual describes a handheld remote and an underside tank cap. Do not transfer the LV600S refill procedure or app assumptions to it. (LV600HH manual)
• V750: check for its tank and cap, removable tray, mist chimney and medicine cup. The manual requires the cup in place during operation even when you want plain steam. Vicks also sells a similarly named Warm Mist Humidifier with SKU VWM845; that is a different model identifier. Ask Vicks support about parts for the exact V750.

Kit and model sources: LV600S manual, V750 manual, VWM845 page. Match any international version to its own electrical label and manual.

1. 1

   Match the label

   V750 or LV600S LUH-A602S-WUS; check the electrical version.

2. 2

   Check the complete kit

   Confirm removable parts, pads and sponges against the matching manual.

3. 3

   Plan water and upkeep

   Choose the water supply and a cleaning routine the recipient can maintain.

4. 4

   Choose controls

   Decide whether manual adjustment, a humidity target or app schedules matter.

How we choose

We compare official manufacturer documentation and EPA guidance, prioritizing mechanism, refilling, humidity control and cleaning. Coverage, runtime and sound remain maker claims; these picks involve no physical testing. Unmatched electrical and sound specifications do not establish a winner. See How we choose.

Verdict

Buy the LV600S for controls and refill convenience; buy the V750 specifically for steam. With Levoit, budget your effort around low-mineral water, detailed disassembly and a deliberate humidity target. With Vicks, make room for steam precautions, cool-down time and heating-element scale removal. Choose the upkeep you can maintain.

Sources

The linked manufacturer manuals supply the specifications and instructions. EPA supplies the mineral-dispersal, humidity and general maintenance guidance; TempPro supplies the companion-monitor specifications.