How to Clean and Sanitize Air Conditioner Filters on Your Own

by Uomo di casa

In this article, I will guide you through the process of cleaning and sanitizing the filters of your air conditioner, a task that, if done regularly, can extend the lifespan of your unit and ensure a healthier environment.

Why is it important to clean air conditioner filters?

Cleaning air conditioner filters is a crucial practice, especially in a context where attention to hygiene and cleanliness is at its peak. This operation should be performed at least once a year, preferably at the start of the warm season when air conditioners are turned back on.

The procedure for cleaning air conditioner filters

The cleaning of the filter does not change, while the extraction of the filter might vary depending on the model of the air conditioner. Specific details can be found in the user and maintenance manual of your air conditioner.

Once the filters are removed, the cleaning involves two main treatments. The first is a degreasing treatment: spray the degreaser (any type you have at home will do) on the filters and rub them with your hands to ensure that the product penetrates well. Then, rinse the filters thoroughly and let them dry. You might notice the water coming out turn black – this is normal and indicates that the dirt is coming off.

Sanitizing the air conditioner filters

Once the filters have dried, the next step is sanitization. Spray a hydro-alcoholic solution, a product that almost all of us have at home, inside the filter. Once again, let the filters dry.

Once dry, the filters can be reassembled on the air conditioner. With these simple steps, you can extend the life of your air conditioner and ensure that the air you breathe in your home is as clean as possible.


Cleaning and sanitizing the air conditioner filters is a practice that, besides ensuring a healthier environment, can help save on energy bills. I hope this guide has been useful to you. See you next time!

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