Not having a cabin air filter can have serious consequences for your car and your health. Without a filter, the air inside your car will be filled with pollutants, allergens, and other particles that can cause damage to your vehicle and make it difficult to breathe. In this article, we'll discuss the dangers of not having a cabin air filter, how to know when to replace it, and what to expect when driving without one. The most obvious problem with not having a cabin air filter is the air quality. Without a filter, all the pollutants on the road, such as diesel fumes and burnt oil, will enter your car and not be cleaned before circulating around the cabin.
Allergens will also enter and not be filtered out. This can cause serious health problems for you and your passengers. In addition to air quality issues, not having a cabin air filter can cause problems related to low airflow. When the filter is clogged or missing, airflow is restricted and this can lead to a lack of cooling, a frozen evaporator, and a frozen expansion valve. It can also cause bad odors to be emitted from the filter. In one study, cabin air filters were found to have different efficiencies depending on the particle size being filtered.
If you own a vehicle manufactured in the last decade, your on-board computer will try to compensate for the lack of an air filter by altering the power supplied to the fans, but this can reduce the life of the entire climate control system. It's important to note that it's illegal in some states to drive without a cabin air filter. In addition, authorities can't see if you're driving without one from outside the vehicle. This is the most serious risk for anyone who does not change their cabin air filter because it can lead to an acute failure of a major vehicle safety system that will be very expensive to repair. The cost of replacing a cabin air filter depends on whether you need an electrostatic, carbon, or standard cabin air filter. Generally speaking, it's best to replace your cabin air filter every six months if you drive in dusty areas.
This will ensure that your car's ventilation system is able to maintain a constant flow of clean air. Changing the cabin air filter isn't just about air quality; it's also a safety issue and a maintenance requirement for your climate control system. On some cars, you can find it under the hood or behind the dash; on others, it's located at the cabin air cleaner location at the end of the article. If you don't change your cabin air filter regularly, it will become more clogged with dirt and debris and this will reduce the efficiency of your car's filter and HVAC system. This is why it's important to replace your cabin air filter every six months if you drive in dusty areas.