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White rectangular humidifier with top-fill tank and dual rotating nozzles

LEVOIT OasisMist 4.5L Smart Warm & Cool Mist Humidifier White

SKU CH-A9V5-Z830A

Smart humidifier delivers warm or cool mist with auto humidity control between 40 and 60 percent RH and app scheduling for rooms up to 215430 ft²

  • Mirror shapeRectangular
  • Design styleSmart Warm&Cool Mist, Rectangular
  • Product collectionOasisMist Smart Cool and Warm Mist Humidifiers for Bedroom L
  • Build detailsBPA-Free Meterial, suitable for babies and adults
  • Dimensions when open10.8 in × 6 in × 11.97 in
  • Dimensions when closed10.8 in × 6 in × 11.97 in
  • Warm and cool mist options provide year-round comfort
  • Auto Mode maintains 40 to 60 percent RH for effortless humidity control
  • Top-fill 4.5L tank enables easy refills without spills
  • Ultra-quiet 26dB operation ensures peaceful sleep or work
  • Dual 360° nozzles direct mist for complete room coverage

Smart humidifier for bedrooms and large rooms

The LEVOIT OasisMist delivers warm and cool mist with a 4.5L top-fill tank and dual 360° nozzles. It covers areas between 215430 ft² and runs as quiet as 26dB. App control and Auto Mode keep humidity between 40 and 60 percent RH automatically. The BPA-free construction suits babies and adults alike.

Replaces manual fill and single-mist units

Upgrade from humidifiers that require flipping tanks or offer only cool mist. The jump is worth it when you want remote scheduling via the VeSync app, warm mist for winter comfort, and aromatherapy pads for essential oils. It solves the hassle of frequent refills and uneven coverage in larger spaces.

Easy top-fill setup with minimal issues

Pour water directly into the top opening without removing the tank. The wide mouth allows simple cleaning with the included brush. Most problems come from skipping regular pad changes or letting mineral build-up block the nozzles. The rectangular shape fits standard surfaces without special mounting.

How it compares

Measured against everything we stock in Bedroom Accessories & Linens, at today’s prices. Recalculated every night.

Price $125.99
Pricier than about 55% of the 362 comparable items (median $95.99).

Specifications

Product
Brand nameLEVOIT
Model nameOasisMist Smart Cool and Warm Mist Humidifiers for Bedroom Large Room Home,
Part numberWarm & Cool Mist Top fill humidifier
Design styleSmart Warm&Cool Mist, Rectangular
Product collectionOasisMist Smart Cool and Warm Mist Humidifiers for Bedroom Large Room Home,
Size & build
Surface finishWhite
Main materialBPA-Free Meterial, suitable for babies and adults
Product weight5.3 lb (2.4 kg)
Build detailsBPA-Free Meterial, suitable for babies and adults
Dimensions when open10.8 in × 6 in × 11.97 in
Dimensions when closed10.8 in × 6 in × 11.97 in
Product shapeRectangular
Mirror size10.8 in × 6 in × 11.97 in
Size or dimensions10.8 in × 6 in × 11.97 in
In the box
Number of sets1
More details
Mirror shapeRectangular

Questions about this item

What are the exact dimensions of the LEVOIT OasisMist 4.5L humidifier so I can check if it fits my nightstand?

The unit measures 10.8 inches wide, 6 inches deep, and 11.97 inches high, weighing 5.3 pounds, so verify your surface has at least that footprint and clearance.

How do I set up the auto-humidity feature on the LEVOIT OasisMist, and what step do people often miss?

Connect the humidifier to Wi-Fi via the VeSync app, then enable Auto Mode and set your target between 40 and 60 percent RH; the step often missed is completing the app pairing before pressing the physical Auto button.

Which parts of the LEVOIT OasisMist 4.5L will I need to replace over time?

The box includes three aroma pads and three absorption pads with one of each pre-installed; plan to swap these periodically as they wear out or become saturated.

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