How to Clean Window Air Conditioners?

If you own a window air conditioner, but aren’t sure how to clean it, then this is the right guide for you! By reading through this guide, you are going to learn all about how to clean a window air conditioner thoroughly and effectively. That way, your window air conditioner is as clean as it can be!

What Is The Best Way To Clean A Window Air Conditioner Without Removing It?

To clean your window air conditioner, without removing it, you will need a spray bottle and some hydrogen peroxide. Take the hydrogen peroxide and pour it into the spray bottle. By doing this, you will then be able to spray hydrogen peroxide on precise spots on the window air conditioner.

Right after you’ve done that, you will need to turn off the window air conditioner. Once the window air conditioner is off, you can then spray hydrogen peroxide along the outflow and intake area.

When hydrogen peroxide is along the intake and outflow area, you will need to let it dry. The amount of time this takes tends to vary, so it’s ideal to let it sit for at least one-hour. If you do this process before going out for a while, then that’s ideal, since it gives the window air conditioner plenty of time to dry.

What Is The Best Way To Deep Clean A Window Air Conditioner?

The best way to deep clean your window air conditioner involves taking the window air conditioner outside. Once the window air conditioner is outside, you will need to remove the case, so that you have access to the internal components.

For this next step, you should have either oxygenated household cleaner or some kind of coil cleaner that is designed for air conditioners. These are the two best choices, as the chemicals within these substances make quick work of the dirt and grime within a window air conditioner.

Once you have either one of those cleaning substances, you can spray the interior of the window air conditioner. Right after that, you will need to let the window air conditioner dry for around ten-minutes.

With a very soft brush – ideally, a bristle brush – you will need to gently scrub the spaces that you have sprayed down. Make sure to do this gently and slowly, so that you don’t damage the internal components.

If there is still dirt and grime that hasn’t come off, it’s best to spray those components again. Then, let them dry for around ten-minutes, and scrub them again.

To end the process, you will need to gently spray the internal and external components of the window air conditioner with water. Most people do this with a hose, but you can do it with other tools, as well. The most important thing, though, is ensuring that the entirety of the window air conditioner is soaked, and that the water isn’t sprayed at too high of a pressure.

When you have done that, you will need to let the window air conditioner dry. For the best results, you should leave the window air conditioner in the sun for around four-hours.


In the end, window air conditioners are exceptional tools that can last a long time if you clean them regularly. By following this guide, you will have no problem cleaning your window air conditioner thoroughly, ensuring that it lasts a long time and is always working well.

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