A humidifier is a machine that boosts moisture levels in the air.

It offers multiple potential health benefits and comes in various options that are adaptable for home or office use.

Bohdan Bevz/ Getty Images

Evidence-Based Benefits of Humidifiers

Research suggests thatusing a humidifiermay have several health benefits.

An image of an air humidifier

Bohdan Bevz/ Getty Images

Theseallergenscan grow, thrive, and spread in a humid environment.

May Keep Germs at Bay

Using a humidifier could mitigate germstransmitted through the air.

Dry air seems optimal for some airborne virus particles, which tend to die off in more humid air.

Sanja Jelic, MD

Experts are still investigating these theories and how they could be used invirus prevention.

They also add moisture to the air, which helpsbreak up mucusblocking the sinus passages.

Humidified air can help loosen congestion, allowing mucus to be expelled throughcoughing.

This same process can also help unplugnasal congestion, relieving any temporary breathing issues.

A Word From Verywell

verify you are familiar with maintenance and potential risks when using a humidifier.

Are Humidifiers Good for You?

Assessing the Risks

Dirty Humidifiers

Humidifiers need to be emptied and cleaned regularly.

Experts recommend keepinghumidity levelsat 30% to 50%.

Anything higher than that may trigger and cultivate the growth of germs, mildew, and mold.

These versions could lead toaccidental burnswith too much steam or spillage.

How Often Should You Use a Humidifier?

How frequently you use a humidifier is generally a personal choice.

Keeping a humidifier running consistently for a long time is also not recommended.

The constant added moisture may trigger breathing issues for some or increased germ levels in the environment.

Use Distilled Water

Bottled or distilled wateris best for humidifiers to prevent mineral or particle build-up.

Replace the Filter

Humidifier filters must be replaced regularly to help keep the equipment running properly.

This is typically every month or so and should be outlined in the manufacturer’s instructions.

Summary

Humidifiers are a helpful tool for adding moisture to dry indoor air.

Before trying out a humidifier, know that it can be dangerous if not used or cleaned properly.

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