Humidifier Filter and Filterless Humidifier: What did you know?

An air humidifier is a familiar appliance among those who live in cold and dry climate. In the cold months, the air gets dry and causes a lot of problems associated with skin and lung. You can be feeling itchy and sometimes bleed in your nose when it’s too dry.

To some people, the cold days are like hell when their allergies and asthma start to be triggered. At night, it’s hard to sleep as we cough a lot due to the dry air. However, the good news is that all of these problems can be treated with a humidifier. There is one more thing: What did you know about Humidifier Filters and Filterless Humidifier?

Can you use Humidifier without Filter?

Air humidifiers are electric appliances which are able to add extra humidity to the air. This means that one way or another, the air you will be breathing in your room comes mainly from your humidifier. If there is any problem with the air, you’ll be inhaling it.

Mineral absorption

Water that is taken directly from the tap contains a lot of minerals. This mineral will cause the air coming out from your humidifier to be filled with little white powder.

This can make you cough, as well as trigger allergies and other lungs problem. Your humidifier needs a filter to get rid of these minerals in the water.

Clean the air

Besides the mineral, dust mites, small particles, also settle in the water.

Filters can trap these things out before they get into the air. That’s why the filter gets dirty so quickly, so, it needs to be cleaned and replaced often.

Humidifier Filter Life

Overall, wick-type humidifiers’ filters should be changed after one to three months depending on how much they are used and the environment they work in.

The filters get dirty very quickly and almost everything dirty in the water and the air is trapped on those filters.

How to clean a Humidifier with Dirty Humidifier Filter

Keep in mind that, if the filters are not replaced in time, your humidifier won’t be working properly, therefore, won’t provide you with enough humidity. Also, bacteria, molds and germs can also develop in your humidifier.

Many things can affect the life of the filters such as: dust, pets, and the water. If you want to keep them for a long time, don’t open the window too much. Additionally, it is very important to keep your pets away from your humidifier.

Also, using distilled water instead of water straight from the tap can dramatically increase the lifespan of the filters.

Some models have permanent filters which can be removed for cleaning. Some models require you to change the filter. Anyway, make sure that you don’t use any chemical substances when cleaning them because you don’t want the filters to get into the air.

Moreover, these substances can damage the holes on your filter, thus, making it inefficient.

How to Install/Remove Humidifier Filter

Everything is clearly written in the manual. However, if you have lost it, then you would need to follow these steps

  • Prepare a new filter and a towel. To prevent water and dust from spilling, make the towel slightly damp and put it under your humidifier.
  • Disconnect your humidifier from any power source
  • Open the front access panel
  • Remove the old filter by hand. Don’t shake it or pull it too hard if you don’t want to spill dust all over the place. Put it on the tower
  • Slide the new filter in. There should be arrow marks on your machine or the new filter.
  • Slide the filter housing back into your humidifier. Close the access panel and restore the power for your humidifier

How to clean a Humidifier

A dirty humidifier does more harm than good. Actually, your humidifier can be a nest for germs, bacteria, and molds. Without proper and regular cleaning, these things will be spread into the air. More importantly, you and your family are the ones to inhale all of that. Remember that cleaning a humidifier needs to be taken out systematically. There are several ways to clean a Humidifier, but you can follow my steps:

Step 1: Unplug it. Take it to a spot where it won’t stain the floor.

Step 2: Take out the filter, rinse it with water and some sponged. Be gentle. Don’t use any chemical substances because it will ruin the filter. If your humidifier requires changing the filter, change it. After cleaning, leave your filter under the sun.

Step 3: Use a mixture of vinegar, baking soda, and water to clean the tank. Then, spread the mixture around the tank (on the sides also). Leave it there for about an hour. Clean it with water afterward and leave it under the sunlight.

Step 4: Clean the frame with a piece of a microfiber cloth with the assist of your cleaning agent. Remember to use a neutral cleaning agent to prevent damaging the paint.

Step 5: Wait for all the parts to be completely dry before placing them back together.

How to make a homemade Humidifier Filter

It can be expensive buying a filter. In seasons when your humidifier is not used often, you can make a filter on your own and use it. Save the good filter for the cold months.


  • Basketball style filters (coffee filters)
  • Stapler
  • A Scissor
  • A small cap with three quarters

Flatten the coffee filters (spare around 5 of them). Turn those five that you spared upside down.

Then, separate them into three different stacks (equal number for each stack). Cut every third ridge of filters in each of those stacks, and the ridges in the center also.

Stack five on them into each other and staple them together

Place the filter in your humidifier. Hold the filter in place by placing the cap with coins in the center

Filterless Humidifier

What Is A Filterless Humidifier?

Although most humidifier includes a filter, some just don’t not because they are faulty, but because they work differently. These humidifiers are called ultrasonic humidifiers. Instead of boiling or cooling water and then adding it to the air like other models, these humidifiers create a mist through vibration. They can break the water droplets into smaller parts and send that mist outside.

Additionally, a filterless humidifier uses electrostatic charge to get rid of impurities from the mist it has just created

What does it do?

Its main purpose is still similar to a normal filter: to emit humidity into the air through water evaporation. The reason why we need this filter is that it requires much less cleaning.

It means that you would need to pay a lot more money for it, though.

Filter vs Filter-free Humidifier

The biggest obvious difference is the filter. But besides from that, their mechanisms are also different.

Filter humidifier Filter-free humidifier
Function Keep the air humid Keep the air humid
Mechanism Boil water until it evaporates and release that water into the air Uses sound vibration to break water droplets into a mist
  • Low price
  • Doesn’t emit white powder from minerals
  • Trap dust, germs, minerals in the filter
  •  Treat allergies and asthma better
  • Produces little noise
  • Requires less cleaning
  • Doesn’t cost extra money on filters
  • Easier to clean
  • Require a lot of cleaning
  • Filter replacing can be costly
  • Produces a lot of noise when operating
  • Expels a lot of white dust due to minerals
  • Costs a lot of money
  • Not suitable for people with allergies and asthma

Although there are differences between a Filterless Humidifier and the other, they are all filters. They keep the air in your room moist, helping you to breathe easier. Therefore, if you are living in a cold climate or help baby get rid of cold and flu, you should definitely consider buying a humidifier instead of spending way too much on cream or lip balm.

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