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How often Should you change humidifier filters?

If you are looking for the answer to this question, you already have a humidifier. Generally, you can use a humidifier to maintain the moisture level in your house when the outside air is cold and dry. In other words, the role of these devices is to make sure that the air inside your house contains enough moisture. Apart from this, these devices can also remove impurities from the air. Generally, these devices contain filters that should be replaced on a regular basis. Let's find out how often you should replace these filters.

How often should you change the filters of your humidifier?

If you turn on your humidifier occasionally, you can change the filter after an interval of three to four months. However, if you use this device on a daily basis, you should replace the filter every two months.

The filter surface is coated with a special material that reduces the growth of mold. but it cannot repel mold. Apart from this, if the filter is dirty, it won't be able to capture dirt, debris, and bacteria from the air.

In some humidifiers, you can find mineral absorption pads that need to be replaced after every two months.

Hard water: If your tap water is hard, you should replace the filter after every 30 days. Generally, magnesium and calcium are the two elements that make your water hardness level go up. The thing is that your filter will get clogged pretty fast if you have hard water. If you can notice white emission from your unit, know that the filter needs to be replaced.

Whole House Humidifiers

Some homeowners have whole-house humidifiers. Generally, these units are ideal for houses located in cold areas. As a matter of fact, whole-house modifiers are known as evaporative pads, water pads, and water panels. In this case, you should change the filter at the end of each season. But if you have hard water, you should change the filter every two months.

How to clean a Humidifier Filter?

If you have cleanable humidifier filters, you don't need to replace them. If you clean them regularly, you can extend their lifespan. However, it is essential to keep in mind that heavily soiled or paper filters should not be cleaned. Similarly, if you can see signs of mold growth on the filter, you must replace it as soon as you can.

Given below are some of the steps that can help you clean the filter:

  1. Remove the filter: Your first move is to remove the filter to remove scale buildup, debris, and loose dust. You can use a vacuum cleaner for an old toothbrush for wiping the filter.

  2. Use a solution of water and vinegar: You should mix 1 cup of white vinegar in one gallon of water. Next, you should place the filter in the water for at least 15 minutes. This process will eliminate the majority of bacteria. Keep shaking the container every five minutes for the best results.

  3. What's the filter: After 15 to 20 minutes, you should take out the filter and rinse it with water. It is not a good idea to wring, twist or squeeze the filter or it may get damaged.

  4. Replace the filter once it is dry: You should not put the filter near a source of heat such as the sun as it may cause damage to the filter.

  5. Tips to extend the filter life?

  6. Given below are some of the tips that can help you make your humidifier stand the test of time.

  7. You should inspect the filters on a regular basis to find out when they should be cleaned.

  8. The humidifier should look neat and clean from the outside. Regular cleaning will make sure that dust and debris will not accumulate on the filter surface.

  9. Cover the unit with a piece of clothing before cleaning or vacuuming your house.


Based on the recommendations given above, we suggest that you replace the filter of your humidifier. If you protect your humidifier against dust, you can get the most out of the filter. If the filter is not blocked, it will not consume a lot of power and will work efficiently. On the other hand, dirty and clogged filters may cause a lot of health issues. Bottled water should not be used at it can be quite expensive. Instead, you should use water from a domestic water filtration system

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