Stop the Splash: Why Is My Humidifier Spitting Out Water?

Your humidifier is spitting out water due to an excessive buildup of mineral deposits. This can occur when the humidifier is not properly cleaned and maintained.

A humidifier is a helpful device used to alleviate dry air and soothe respiratory issues. However, if it starts spitting out water instead of providing moist air, you may wonder what the problem is. The answer lies in mineral deposits that accumulate within the humidifier over time.

When not properly cleaned, these deposits can become excessive and result in water spitting. This can be frustrating, not to mention pose a risk to your health. To prevent this from happening, it is important to regularly clean and maintain your humidifier. This article will provide tips on how to clean and maintain your humidifier, and explain other possible reasons why it is spitting water.

Understanding How Humidifiers Work

Overview Of Humidifier Types – Ultrasonic, Evaporative, Steam-Based

Humidifiers are essential for maintaining a comfortable and healthy living environment, particularly during the colder seasons when the air becomes dry. There are three types of humidifiers: ultrasonic, evaporative, and steam-based. Each model runs differently, but they all have the same goal: to add moisture to the air in a room.

Here’s a quick rundown of the three humidifier types:

  • Ultrasonic humidifiers – these models use high-frequency vibrations to create a mist that increases the humidity in the air. They’re quiet and energy-efficient.
  • Evaporative humidifiers – these models pull air through a wet wick or filter, and then blow it into the room. They naturally add humidity to the air, and they’re simple and easy to maintain.
  • Steam-based humidifiers – these models generate steam by heating water and then release it into the air to increase humidity levels. They’re beneficial for people with respiratory issues, but they consume more energy to operate.

The Science Behind Generating Moisture

Humidifiers are useful home devices that add moisture to the air, improving air quality, and reducing the effects of dry air. But have you ever wondered how these devices generate moisture? Here’s the science behind it:

  • The humidifier pulls in the dry air from the room and passes it over or through a special filter.
  • Depending on the humidifier type, the device then either vibrates the water at high frequency or heats it to create mist or steam.
  • The humidifier then releases the mist or steam into the air, increasing the humidity levels of the room.

In simple terms, the humidifier generates moisture through the process of either atomization, evaporation, or boiling water.

How The Humidifier Disperses Moisture Into The Air

Humidifiers are designed to add moisture to the air, but how does the device disperse the moisture into the room effectively? Here’s how:

  • Ultrasonic humidifiers use a small metal plate that vibrates at a high frequency, thus breaking down water into a fine mist. A small fan inside the humidifier then distributes the mist into the air.
  • For evaporative humidifiers, the device pulls dry, air through a wet wick or filter pad. The water evaporates, and the fan propels the moistened air back into the room, increasing the humidity levels of the air.
  • Steam-based humidifiers boil water, and the resulting steam mixes with the room air, increasing the humidity levels.
Related Post:  Filterless Humidifiers: Can You Use Humidifier Without Filter?

Understanding how humidifiers work is essential to maximize their benefits. Whether you choose evaporative, ultrasonic, or steam-based, keep in mind that regular cleaning and maintenance are key to avoid issues like spitting water out of the humidifier.

Causes Of Humidifiers Spitting Out Water

Humidifiers work by adding moisture to the air to prevent dry skin, throat, and nose. However, sometimes humidifiers may spit out water, which could cause damage to your furnishings and the floor. Here are some of the common causes of humidifiers spitting out water:

Poor Maintenance Habits

Humidifiers need proper maintenance to work correctly. Neglecting maintenance can lead to a buildup of mineral deposits, bacteria and mold growth, causing the humidifier to spit out water. To avoid this:

  • Follow the manufacturer’s instructions for cleaning the humidifier every one to two weeks.
  • Replace the filter routinely, or as the manufacturer recommends.
  • Keep the water tank clean from any deposits and bacteria.

Infrequent Cleaning

Humidifiers require regular cleaning to function at their best. Failure to clean them can allow minerals like calcium and magnesium to build up, making them susceptible to spitting out water. To prevent this:

  • Clean the humidifier regularly, at least every one to two weeks.
  • Rinse it thoroughly after each use.
  • Use distilled water when cleaning it.

Incorrect Water Usage

The water you put into the humidifier may be causing it to spit out water. Using contaminated water can cause mineral deposits to build up and block the unit’s nozzle. To prevent this:

  • Use distilled or demineralized water to prevent mineral buildup.
  • Avoid using tap or hard water as they have high mineral content.
  • Check the water level in the humidifier regularly and fill as necessary.

Incorrectly Installed Humidifier

Poor installation of a humidifier can cause water to spill out of the unit. To prevent this:

  • Ensure correct installation of the humidifier according to the manufacturer’s instructions.
  • Make sure the humidifier is placed on a level surface.
  • Check the unit for any leaks and make sure everything is tightened properly.


Overhumidification occurs when there is too much humidity in the air that could cause the humidity level to reach above 50%, which is not comfortable for humans. Overhumidification could be due to a malfunctioning humidistat or over-using the humidifier.

Definition Of Overhumidification

Overhumidification occurs when there is too much humidity in the air that could cause the humidity level to reach above 50%, which is not comfortable for humans. Overhumidification could be due to a malfunctioning humidistat or over-using the humidifier.

Related Post:  Heal Your Nosebleeds Quickly: Do Humidifiers Help?

Causes Of Overhumidification

Overhumidification could be caused by:

  • Overusing the humidifier.
  • Operating the humidifier throughout the day and night.
  • Using a humidifier that’s too big for your room’s size.
  • Placing the humidifier close to walls or vents that could trap the moisture in one area.

How Overhumidification Affects Your Health And Home

Overhumidification can cause damage to your home and health. When there is an excessive amount of moisture in the air, it can lead to:

  • Wet stains and molds on the walls and ceiling that could cause damage to the structure of your home.
  • Increased humidity levels that make the environment friendly for mold and dust mites, which could cause respiratory issues.
  • Reduced energy efficiency in your home.
  • Dampness in the air that could encourage pests like cockroaches and spiders.

Spitting of water from the humidifier can cause damage to your home and health. Avoiding poor maintenance habits, incorrect water usage, and infrequent cleaning can prevent your humidifier from spitting out water. If you’re experiencing overhumidification, it’s essential to understand the causes and how it can affect your health and home.

Solutions For ‘stop The Splash’

Why Is My Humidifier Spitting Out Water

Humidifiers can benefit your indoor air quality by adding moisture to the air, ultimately making it easier to breathe. However, if your humidifier has been spitting out water, you might not know where to begin to stop the splash. We will discuss solutions to stop the splash, cleaning and maintaining your humidifier, adjusting humidity levels, and troubleshooting common problems.

Cleaning And Maintaining Your Humidifier

Cleaning your humidifier is essential to keeping it running smoothly. Over time, humidifiers can become breeding grounds for bacteria and mold, which can be detrimental to your health. The following are some guidelines to follow when cleaning and maintaining your humidifier:

  • Start by unplugging the humidifier and emptying any remaining water.
  • Remove any detachable parts, such as the water tank, and wash with warm, soapy water.
  • Use a soft-bristled brush or toothbrush to remove any stubborn build-up or residue.
  • Rinse the parts with clean water and allow them to air dry completely before reassembling.

Cleaning Schedule And Methods

It is recommended to clean your humidifier at least once a week, with more frequent cleanings during months of excessive use or if you notice any visible build-up. In addition to cleaning, there are other maintenance tasks to keep in mind:

  • Change the water in your humidifier daily, especially if it is not in use.
  • Use distilled water instead of tap water to help prevent mineral build-up and improve efficiency.
  • Replace filters at least once a season, or according to the manufacturer’s instructions.
Related Post:  The Ultimate Guide: How to Fill Aqua Oasis Humidifier

Tips For Water Usage

Using the right type of water is essential for the efficient functioning of a humidifier. Here are some tips you can use:

  • Distilled water is ideal due to its lack of minerals and contaminants.
  • If you are using tap water, make sure you use a water filter or softener to reduce minerals build-up that can be harmful to your health.

Adjusting Humidity Levels

Humidity levels can make or break the overall comfort levels of your home. The following are some recommendations for adjusting humidity levels:

Recommended Humidity Levels For Different Seasons

Maintaining optimal humidity levels can prevent discomfort and possible health concerns. Humidity levels fluctuate depending on the season. The following are the recommended humidity levels for your home during different seasons:

  • Winter: 30-40%
  • Summer: 50-60%

Methods To Measure Humidity Levels

To measure the humidity levels, you can use an indoor hygrometer, a device specifically designed for monitoring the levels of humidity indoors.

How To Adjust Humidity Levels

If you want to increase humidity levels, you can perform the following steps:

  • Place bowls of water around your home.
  • Add water directly to the humidifier.
  • Use a humidifier with a built-in humidistat.

If you want to decrease humidity levels, you can perform the following steps:

  • Use a dehumidifier
  • Open windows and doors to increase ventilation.
  • Turn on your air conditioning system.


If your humidifier is not functioning well, consider the following steps to fix the problem:

Simple Ways To Fix A Broken Or Clogged Humidifier

  • Check your power source and replace any damaged cords or plugs.
  • Check the water level in your humidifier and refill it as needed.
  • Clean the humidifier.

When To Call A Professional

If your humidifier is still experiencing problems after trying all the above steps, it is time to call a professional. They can offer additional guidance to help fix the problem and prevent future issues.


As we come to the end of this blog post, we hope that we were able to shed some light on the reasons why your humidifier may be spitting out water. From overfilling to incorrect settings, there are several issues that can cause water spitting.

Make sure to regularly clean and maintain your humidifier, and double-check that it is operating correctly to avoid any damage to your health or your property. In addition, it may be worth investing in a high-quality humidifier with built-in features that prevent spitting.

Remember to always read the manufacturer’s instructions carefully and seek professional help if you feel unsure about anything. We hope that this information helps you to fix any issues you may be experiencing and enjoy the benefits of a well-working humidifier.

Similar Posts