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It’s official—experts at Molly Maid explain why your house is always dusty and how it affects your health

by Sandra V
January 10, 2026
in News
It's official—experts at Molly Maid explain why your house is always dusty and how it affects your health

It's official—experts at Molly Maid explain why your house is always dusty and how it affects your health

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Do you frequently clean your house and you keep seeing dust over and over again? Let me tell you dust doesn’t make your house look dirty, but it’s true it can cause issues for people with allergies or breathing difficulties. So, we are here to tell you why your house is full of dust and how to keep it cleaner and healthier. Let’s see how.

Where does dust come from?

Dust is formed by small particles from many places. It can include skin cells, hair, fibers from clothes or furniture, pollen, and even particles from outside. Even if you clean your house a lot, dust will always be there because it floats in the air or it enters from outside.

So, cleaning frequently helps, but it’s not enough on its own. There are other reasons why your house might feel dusty. Now, let’s see why.

Not dusting often enough

If you don’t clean the dust off your house regularly, it will keep accumulating. Experts recommend dusting at least once a week and instead of using a feather duster, use a damp microfiber cloth.  These cloths work much better because they catch almost all dust and bacteria, making cleaning more effective.

Also, when you start cleaning, do it from the top of the room downwards. This way the dust will fall on the floor and you could vacuum it or mop it afterwards.

Poor air circulation

If your house has poor air circulation, the dust accumulates way faster. To improve this, open the windows when possible and use ceiling fans. Remember to clean the fan blades first, otherwise they will move the dust around the entire house.

If you have an HVAC system, clean the air vents or vacuum them to make sure dust isn’t blowing back into your home.

Dust entering from outside

Dust also enters from outside. Dirt, pollen, and pollution are on your shoes, clothes, and pets, which then enter your house. So, the areas like halls tend to get dirty faster because they are high-traffic areas.

To help prevent outdoor dust from spreading inside, use doormats and take off shoes before entering the house. Air purifiers with HEPA filters can also capture dust and help if you have allergies or breathing problems.

Drafty windows and doors

Cracks around your windows and doors allow dust to enter your home too. So, you should check your windows and doors to make sure they are well-sealed. This reduces dust and helps keep the proper temperature inside your house.

Issues with the HVAC system

The HVAC system filter is key to maintain dust out of the air of your house. So, change filters every three to six weeks, or every two weeks if you have pets or allergies.

If dust keeps accumulating,even when you regularly clean, you can get help from a professional. They can check and clean the air ducts, where dust can accumulate and circulate around the house.

How to keep your house mostly free from dust

So, if you want to follow all these recommendations, here’s a summary of all you should do to keep your home as clean as possible:

  • Dust weekly with a microfiber cloth.
  • Improve airflow with fans and open windows.
  • Take off shoes at the door and consider an air purifier.
  • Seal drafty windows and doors.
  • Maintain your HVAC system and replace filters regularly.

Basically, dust in your house is natural, but it doesn’t have to take over. With simple changes like we have previously mentioned you can make a huge difference. I’m sure not many people know about this, so why don’t you share this piece of valuable information with your friends and family? They will appreciate it.

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