
Do you struggle with dry air in your home, leading to discomfort and breathing issues?
If so, the Vicks Warm Mist Humidifier VWM845 might be your solution.
The purpose of this humidifier is to relieve dry air by producing a warm mist that adds moisture to the air in your home.
Whether you’re dealing with the effects of winter weather or want to create a more comfortable living environment, the Vicks Warm Mist Humidifier can help.
Equipped with a medicine cup for use with Vicks VapoSteam, this humidifier can also provide temporary relief from cough and congestion symptoms.
The VWM845 model is easy to operate and maintain, making it a convenient addition to any home.
With its adjustable mist control and auto shut-off feature, you can customize your space’s humidity level with peace of mind about safety.
Say goodbye to dry, uncomfortable air and hello to a more soothing living environment with the Vicks Warm Mist Humidifier VWM845.
In this review, we’ll talk about the key features of the Vicks warm humidifier VWM845 to help you with your buying decision.
Vicks Warm Mist Humidifier Medium warm mist Humidifier | |
This Vicks warm mist humidifier is a medium-sized, stylish humidifier that emits a comfortable, warm mist to relieve cough and cold symptoms.
It is quiet with a one-gallon tank that can run for up to 24 hours. Ideal for medium-sized rooms up to 400 square feet (37 square meters).
This humidifier does not use filters, and your air can be enhanced by adding Vicks VapoSteam for medicated vapors. It has a high and a low comfort mist setting and an auto shut-off function when the water level is low. This device is ideal for bedrooms, kidsâ, and baby rooms.
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Pros | |
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Cons | |
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Ease of use | |
Low operating noise | |
Smart Features | |
Easy to fill with water and clean | |
Automatic features | |
3.5 out of 5 | |
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A fashionable, medium-sized humidifier with a 24-hour runtime on a gallon of water. It offers warm mist via a choice of a high or low comfort setting.
You can add Vicks VapoSteam for medicated vapors to help relieve coughs and congestion. It features an automated shut-off mechanism for safety.
The whisper-quiet device is ideal for bedrooms, kids, and baby rooms.
Key Features of the Vicks Warm Humidifier VWM845
- Ideal for medium sized rooms up to 400 sq ft (37 sq m)
- Aesthetically pleasing design
- Vaporizing warm mist
- 1-gallon bottom fill tank
- Whisper-quiet operation
- Two comfort mist settings – high and low
- Runs for up to 24 hours
- Automatic shut-off function
- Some parts are dishwasher-safe
- It can be used with Vicks VapoPads or Vicks VapoSteam (sold separately)
- Easy to clean using Protec® Antimicrobial Cleaning Products

Setup of Vicks Warm Mist Humidifier
Follow these easy steps to set up your Vicks warm humidifier VWM845.
- Remove the packaging
- Keep the Instruction Manual aside for reference
- Remove the tie twist from the power cord
- Extend the cord to its full length
- Ensure that the Mist Chimney and Medicine Cup are securely in place
- Ensure that the Water Tray is securely in place
- Ensure that the Heating Element Cover is secure
- Place your device on a flat, water-resistant surface at least 12 inches away from walls
- Ensure that the steam is directed away from bedding, curtains, or furniture
- Remove the water tank by grasping the handle and pulling it upwards
- Flip the tank upside down
- Remove the tank cap by rotating it counterclockwise.
- Fill the tank with cold tap water or distilled water
- Close the tank cap securely by turning it clockwise
- Position the tank back onto the base
- Optional – add VapoSteam or VapoPad
- Plug your machine in and press the Power Button to turn on

Vicks VapoSteam and VapoPads
If, like me, you grew up with Vicks VapoRub either on your chest or a handkerchief to relieve congestion when you were sick. With this warm mist humidifier you can replicate the comfort and relief associated with the VapoRub smell.
You may use either of the following methods to add the same cooling menthol vapors to your warm mist humidifier prior to turning it on:
Accessory | Application |
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Vicks VapoSteam | pour one tablespoon of Vicks VapoSteam into the medicine cup and pour it into the dispenser on the top of the machine. |
Vicks VapoPads | place a VapoPad into the base of the machine by opening the Scent Pad Door which is located under the settings dial and placing the pad on the tray. |
What we like
- We like the aesthetically pleasing design and the very low noise level.
- The device runs for a long 24 hours and offers a high and low comfort mist level.
- Adding Vicks VapoSteam makes the warm steam very effective in relieving coughs and congestion.
- No filters are needed, and adding Protec® Antimicrobial Cleaning Products to the water helps reduce calcium build-up.
What we dislike
- Some buyers find that a top-filling tank is easier to use.
- The device does build up calcium deposits in the heating chamber that need to be removed by following the descaling instructions.
- Although warm mist is excellent for kids and pets, you should position the machine far out of reach to avoid steam scalds.
- For night use, the light cannot be turned off.
- Compared to ultrasonic humidifiers there is not a lot of mist output due to steam generation and can appear not to be working if you are used to a humidifier with high mist output.
What customers are saying about the Vicks warm humidifier VWM845
This humidifier has many positive reviews and works well with very few issues.
Some buyers complained about the calcium build-up on the heating element. However, adding Protec® Antimicrobial Cleaning Products to the water will reduce calcium build-up.
Many buyers commented on how this device helps to reduce congestion, allergies, and stuffy noses.
Some buyers commented that there seemed not to be a lot of vapor produced. Humidifiers that produce a lot of vapor are usually ultrasonic; this model is steam, and therefore, you may not necessarily see the steam (as you don’t always see from a boiling jug of water).
Measuring the humidity level in your room with a hygrometer before using the humidifier and then again a few days later will tell you how much the humidity level has increased and confirm the appliance is working.

Does the Vicks VapoSteam go into the water tank?
No, it does not. The Vicks VapoSteam is poured into the Medicine Cup at the top of the machine. Do not pour it into your tank, as this will damage the machine.
Does the machine use filters?
No, this device does not need filters.
Is it essential to use distilled water?
The manufacturer recommends using distilled water if your tap water is mineral-heavy. Adding Protec® Antimicrobial Cleaning Products will reduce mineral build-up from hard water.
How does a Warm Mist humidifier work?
A warm mist humidifier works by heating water to create steam, which is then released into the air to increase the humidity in a room.
The unit typically has a heating element that boils the water, and the resulting steam is expelled into the air through a nozzle or vent. This process helps to add moisture to the air and can help alleviate dryness in the environment.
Warm mist humidifiers are often used during the colder months to provide warmth and humidity in a room.
Comparisons to other humidifiers
Vicks warm humidifier VWM845 vs the competition
This model really stands out from the competition due to its long running time of up to 24 hours and its stylish, modern design.
The device is easy to operate and has two comfort mist setting levels at the turn of a button.
It runs at a whisper-quiet noise level, making it ideal for bedrooms, kids, and baby rooms.

Specifications
Specification | Vicks Warm Mist Humidifier |
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Product Name | Vicks Warm Mist Humidifier VWM845 |
Product Brand | Vicks |
Tank Size | 1.00 Gallon / 3.7L |
Top Filling tank | No |
Time between fills | 24 hours |
Recommended Room Size | 400 sq ft (Medium sized room) |
Color | White and blue |
Material | Plastic |
Summary
We selected the Vicks warm humidifier VWM845 as one of our Top Picks.
It is a stylish device that dispenses mist for up to 24 hours. It can be used to alleviate health issues by adding Vicks VapoSteam for medicated vapors.
The whisper-quiet humidifier has two comfort mist settings, a safety automatic shut-off function, and a 1 gallon bottom-fill tank.