Dirt and dust can quickly build up in your air conditioner unit, especially if it’s not regularly cleaned. This can cause several problems, from decreased efficiency to actual damage to the unit. Let’s take a look at some of the different types of dirt and dust that can be found in your air conditioner unit and how to deal with them.


Pollen is a fine powder that is released into the air by plants. When it comes into contact with your skin, eyes, or nose, it can cause irritation and allergic reactions. In some cases, pollen can even trigger asthma attacks.

Pollen can clog your air conditioner and cause it to work less efficiently. You may also have an allergic reaction to pollen if exposed to it. To avoid these problems, you should clean your air conditioner regularly and keep it well-maintained.

Pet Dander

Pet dander is one of the most common indoor allergens. It consists of tiny flakes of skin shed by cats, dogs, and other animals with fur or feathers. When pet dander gets into your air conditioner unit, it can cause several problems.

Pet dander can clog your AC filter, making it less effective at trapping other allergens and pollutants. It can also build up on the coils of your AC unit, making them less efficient at cooling your home.

Pet dander can cause exacerbating allergies and asthma symptoms. Exposure to even small amounts can trigger sneezing, watery eyes, and other uncomfortable symptoms for people allergic to pet dander. People living with Asthma may also have difficulty breathing when exposed to pet dander.


How can you reduce pet dander in your AC unit? First, make sure to clean or replace your AC filter regularly. Secondly, have your AC unit regularly serviced to keep the coils clean and debris-free. Lastly, keep pets out of rooms with central air conditioning units to prevent them from spreading dander throughout your home.

Fine Particles

These particles are so small that they can easily be inhaled and cause various health problems, such as respiratory infections, asthma, and even heart disease. According to the Environmental Protection Agency (EPA), exposure to these particles can even be deadly.

So what can you do to protect yourself from these harmful particles? The best thing you can do is ensure that your AC unit is regularly serviced and cleaned. This will help remove any particles build-up and ensure that your AC unit runs efficiently.

Dust Mites

Dust mites are tiny creatures that thrive in warm, humid environments. They are often found in mattresses, upholstered furniture, and carpets. When these items become wet or sweaty, dust mites can multiply quickly.

Dust mites are not harmful to humans but can cause allergies and asthma attacks in some people. In addition, dust mites can clog your AC unit and reduce its efficiency. If you have dust mite allergies, keeping your AC unit clean and free of these pests is essential.


Mold is a type of fungus that can grow both indoors and outdoors. In warm, humid climates, mold can be a problem in air conditioner units. When mold gets into your AC unit, it can cause several problems.

The first is that it can clog the evaporator coils, which reduces the unit’s ability to cool your home. Additionally, mold spores can be released into the air, causing respiratory problems for people with allergies or asthma. Mold can also cause corrosion on metal parts of the AC unit.

If you think you may have a mold problem in your AC unit, it’s important to have it inspected by a professional as soon as possible. If left untreated, mold can cause extensive damage to your AC unit, making it less effective at cooling your home.


Many types of dirt and dust can be in your air conditioner unit. At Triangle AC, we can maintain your unit so that it is clean and efficient. Call us today to schedule a maintenance appointment!