Does a Humidifier Use a Lot Of Electricity

Does a Humidifier Use a Lot Of Electricity? It depends on the type of humidifier Not all humidifiers use the same amount of electricity, especially if they are not of the same class or size. However, some humidifier classes use more energy than others due to their design (the process of breaking water into mist).

When it comes to size, we can’t expect a whole-home humidifier to consume as much power as a portable but bulky unit. Also, a large portable device would not consume as much power as a small device designed for small spaces. For clarity on the exact amount of energy consumed, you can check the product specifications.

Does a Humidifier Use a Lot Of Electricity

Humidifiers have become indispensable in many homes, especially in regions with dry, arid climates. They play a key role in maintaining a comfortable and healthy indoor space by adding moisture to the air. However, the question often arises: Does the humidifier consume a lot of electricity? In this article, we talk about the energy consumption of humidifiers, how they affect your electricity bill, and give you some tips on how to effectively optimize your use.

Different Types Of Humidifier Power Consumption

The exact power consumption of a humidifier depends largely on the type of humidifier used. There are two categories of humidifiers: portable humidifiers and whole-home humidifiers.

Portable Humidifier

The vast majority of humidifiers are portable. All that means is that they are small, self-contained units that can be moved from room to room. You benefit from more flexibility, but the downside is that portable humidifiers take up little space. Very rarely does a portable humidifier have enough power to run a small house.
Portable Humidifier

portable humidifiers have a small water tank that needs to be replaced. Works when plugged into a 120V outlet.

Options are divided into three different types of portable humidifiers:

Ultrasonic Humidifier

Energy Use: 44 kWh

Estimated savings for Energy Efficient model: 11.8 kWh per year / $1.36 annual savings

The Ultrasonic Humidifier has a piezoelectric device inside that eliminates the need for a heater. However, it relies on a fan to dissipate the vapor.

Cool Mist Humidifier

Energy Use: 80 kWh

Estimated Savings for Energy Efficient Model: 36.2 kWh/year / $4.17 Annual Savings

Cool Mist humidifiers are the most common humidifiers. About half of the humidifiers in the US are cold mist humidifiers. This type of humidifier has an internal fan that forces water through a diffuser, creating a mist.

Warm mist Humidifier

Energy consumption: 220 kWh

Estimated savings for energy saving model: 80.1 kWh per year / $9.22 savings per year

The Warm Mist Humidifier has a heating element in the tank that heats the water before it is released as a mist.

Whole Home Humidifier

Whole Home Humidifier

The Whole Home Humidifier is a complex system that requires professional installation. The air humidifier is installed in the duct so that up to 6,000 square meters of space can be humidified with the hygrostat. A cost factor is the need to replace the humidifier filter every six months.

Factors that can determine a humidifier’s energy use

In addition to the type of humidifier, other factors such as capacity, room size, and standby mode can also be important in determining a humidifier’s energy use. Let’s take a closer look at them so far;


How does efficiency affect the power consumption of a humidifier? It depends on how many gallons of water your humidifier is expected to release into the air.

The more useful it is, the more energy it consumes. This is especially the case with warm mist humidifiers, which may require a gallon of water to evaporate and warm the air in the room. The Cool Mist humidifiers use only fans and it doesn’t take much energy to cool a room. The same applies to ultrasonic humidifiers with fans, but their energy consumption is higher.

Room size

Comparison 500 square meters. House up to 1000 m².Ft.hour means you need more gallons of water to heat the room. The size of the room matters a lot. The smaller the area, the faster the humidifier works and consumes less energy. The larger the room, the more energy the humidifier needs over a longer period to achieve its performance.


Turning on the humidifier increases your electricity bill. Most humidifiers have small electronic components like humidity sensors and timers that also require power to operate. When the humidifier is on, you can rest assured that the controls being used are consuming some of the units. Disconnecting the humidifier from the mains can reduce your energy costs.

Tips for Reducing Humidifier Energy Use

Proper Humidifier Size and Location

Select the right size humidifier for the space you want to humidify. A larger humidifier for a small space can lead to unnecessary energy consumption. Place the humidifier in a central location to ensure even humidity distribution.

Regular Maintenance

Clean the humidifier regularly to ensure optimal performance. A dirty humidifier may require more energy to function efficiently.

Humidity Control

With the hygrometer, you can monitor the humidity in the room. Adjust the humidifier to maintain a comfortable and healthy humidity range (typically between 30% and 50%). Excessive operation of the humidifier can lead to increased energy consumption.

Conclusion “Does a Humidifier Use a Lot Of Electricity”

Different humidifiers have different energy consumption; Therefore, when buying, you should consider on your own what type of humidifier you choose depending on the available electricity budget.

Pay attention to the energy consumption and compare the performance of all available models. Humidifiers play a huge role in our lives. It is therefore important that you get the best energy-efficient solution. If this is not possible, hire HVAC technicians.

Frequently Asked Questions

Does a Humidifier Use a Lot Of Electricity?
The current consumption of the humidifier depends on its type and capacity. For example, a whole-house humidifier uses more electricity than portable humidifiers. Likewise, an energy-efficient humidifier uses less electricity than conventional humidifiers.

Do all humidifiers use the same amount of electricity?
No, humidifier energy consumption varies by type, size, and usage.

Can a humidifier replace an air conditioner?
No, humidifiers and air conditioners have different purposes. Humidifiers add moisture to the air, while air conditioners cool the room by removing moisture.

Are ultrasonic humidifiers more energy efficient than evaporative humidifiers?
ultrasonic humidifiers generally use less energy than evaporative humidifiers, making them a more energy-efficient choice.

Is it safe to use a humidifier throughout the night?
Yes, it is safe to use a humidifier at night. However, to avoid excessive energy consumption, good humidity control is essential.

What is the ideal humidity level in the room?
The ideal indoor humidity is typically between 30% and 50% for optimal comfort and health.