How Can I Tell if my Cabin Air Filter should be replaced?

There are a number of ways you can tell if your cabin air filter should be replaced. Some of them are obvious. Here are the most common:

A funky smell. If the air coming from your car’s ventilation system has an odd smell, you probably need to replace your cabin air filter. This is definitely the most noticeable sign a cabin air filter is ready for service.

The AC vents don’t give out much air. If it feels like there’s been a reduction in the amount of airflow through your AC vents and it takes a long time to cool or heat the vehicle, it’s probably time to replace the cabin air filter. Over time, the cabin air filter gets clogged up with dust and debris, so reduced airflow is one of the most common signs of a need to replace.

Allergies acting up or breathing problems. If you have allergies or asthma or other breathing problems, you might notice a gradual or even a sudden increase in issues if your cabin air filter needs to be replaced. Everything the cabin air filter removes piles up on the filter and if it’s clogged, it could be doing a poor job of filtering the air you breathe while you’re in the vehicle. If you’re having breathing problems, make sure to check your cabin air filter.

Vehicle performance decrease. It’s possible that a clogged air filter can cause your vehicle’s engine to work harder to put air through the air conditioning system. If this happens, you may notice that your vehicle doesn’t perform as well as it used to. If you’re experiencing this issue, make sure to check both your cabin air filter and your engine air filter.