Air Filter

How to Choose the Right Air Filter for Your Car


Prashant Salla
Prashant Salla6 min read
How to Choose the Right Air Filter for Your Car

Are you looking to replace the air filter in your car but feeling overwhelmed by the options available?

Choosing a high-performance air filter is an important decision that can impact the performance, efficiency, and longevity of your car's engine. With so many car air filters out there, it can be confusing to know how to begin. 

In this article, we'll provide you with a guide on selecting the right air filter for your car, considering factors such as material, efficiency, and cost. 

By the end, you'll be equipped with enough information you need to ensure your car's engine receives the clean air it needs to function at its best.

Replacing Your Air Filter with Goodhood

When faced with a damaged air filter, the first step is determining which type of filter is best suited for your car.

The type of air filter you need will depend on the model and make of your vehicle. If you know what your vehicle requires, you can narrow down the selection process by looking for an appropriate match.

Goodhood offers a wide range of quality air filters that have been designed to meet the individual needs of certain vehicles.

If you're unsure about which air filter is compatible with your car, Goodhood's team of experienced staff is always on hand to provide detailed advice and assistance. They'll be able to identify the correct filter for your vehicle based on the age, make, model, and other specifications.

Types of Air Filters

When it comes to choosing an air filter for your car, there are several types to consider. Each type has its set of advantages and disadvantages, so it's crucial to understand the differences between them to determine which is the best fit for your needs.

Here are some of the most common:

Paper Air Filters

These are the most common air filters and are typically made of cellulose fibers. They're inexpensive and can effectively capture large particles but may need to be replaced more frequently than other types.

Foam Air Filters

Foam air filters are made of polyurethane foam and are often used in off-road vehicles. They can capture smaller particles than paper filters and are washable, making them more sustainable. They may need to be replaced more regularly than other types.

Cotton Air Filters

Cotton air filters are made of multiple layers of oiled cotton gauze and can capture smaller particles than paper or foam filters. They're washable and reusable, making them a more environmentally friendly option. However, they can be more expensive upfront.

Synthetic Air Filters

Synthetic air filters are typically made of non-woven polyester or nylon fibers and can capture even smaller particles than cotton filters. They're often more durable than other types and can last longer but may be more expensive upfront.

Performance Air Filters

Performance air filters are designed to increase airflow to your engine, which can improve horsepower and acceleration. They can be made of materials such as cotton or synthetic fibers and may require more frequent cleaning and maintenance than other types.

When choosing an air filter, consider your driving needs and habits to determine which type is the best fit for your car.

Factors such as your typical driving environment, how often you drive, and the age and condition of your car can all impact which type of air filter is most appropriate. 

Be sure to consult your car owner's manual or a professional mechanic for guidance on which type of air filter is best suited for your car's make and model.

Efficiency Ratings

Efficiency ratings are an important factor to consider when choosing an air filter for your car. These ratings indicate the filter's ability to capture particles of different sizes, with higher ratings indicating better filtration.

MERV

The most common rating system for air filters is the MERV (Minimum Efficiency Reporting Value) rating, which ranges from 1 to 20. A higher MERV rating means the filter can capture smaller particles and provide better filtration. However, it's important to note that higher MERV ratings can also reduce airflow and potentially impact your car's performance. For most cars, a MERV rating between 8 and 13 is recommended for optimal balance between filtration and airflow.

HEPA

Another efficiency rating to consider is HEPA (High-Efficiency Particulate Air) filters, which are able to capture 99.97% of particles that are 0.3 microns in size or larger. HEPA filters are typically used in industrial and medical settings and are not commonly used in cars, as they can restrict airflow too much.

When choosing an air filter, be sure to check the efficiency ratings and consult your owner's manual or a professional ASE-certified mechanic to ensure that the filter is appropriate for your car's make and model. A filter with a higher efficiency rating may provide better filtration, but it's important to also consider airflow and overall performance to make the best choice for your car.

Size

The size of your air filter is another important factor to consider. An air filter that is too small may not fit properly, while one that is too large may not seal properly and can allow unfiltered air to bypass the filter.

To determine the correct size for your air filter, consult your owner's manual or measure the existing air filter to ensure a proper fit. Be sure to also consider the shape and orientation of the air filter, as some filters may have unique shapes or angles that are designed to fit specific models of cars.

Compatibility

In addition to size, compatibility is another important factor to consider when choosing an air filter. Not all air filters are compatible with all makes and models of cars, so it's important to choose a filter that is designed specifically for your car.

When selecting an air filter, consider the make, model, and year of your car and any specific engine or performance upgrades that may impact the compatibility of the filter. Choosing an air filter that is not compatible with your car can result in reduced performance, increased fuel consumption, and potential damage to your engine.

To ensure compatibility, consult your owner's manual or a professional mechanic, or use an online filter finder tool to help you choose and find the correct filter for your car. It's also important to only purchase air filters from reputable manufacturers to ensure that you are getting a high-quality product that is designed specifically for your car.

Maintenance

Proper maintenance is a key practice to ensuring your air filter is performing optimally and providing the necessary protection to your engine. Over time, air filters can clog with dirt, dust, and debris, which can reduce airflow and impact engine performance.

It's important to follow the manufacturer's recommended maintenance schedule for your air filter, which typically involves inspecting the filter regularly and replacing it as needed. In general, drivers should replace air filters every 12,000 to 15,000 miles, although this may vary depending on your driving conditions.

If you frequently drive in dusty and/or dirty conditions, you may need to replace your air filter more frequently. Similarly, if you have a performance car or have made upgrades to your engine, you may need a higher-performance air filter that requires more frequent replacement.

Neglecting to replace your air filter when needed can result in reduced engine performance, increased fuel consumption, and potential damage to your engine. Regular air filter maintenance can help ensure that your engine is receiving clean air and performing at its best.

In addition to regular replacement, inspecting your air filter periodically for signs of damage or wear is important. The cold air intake system can be especially vulnerable to heat and moisture, so it's essential you check for signs of leaking or cracking.

If you notice any tears, cracks, or other damage to the filter, it should be replaced immediately to ensure proper protection for your engine.

Conclusion

Choosing the right air filter for your car is essential to ensure that your engine is receiving clean air and performing optimally. With so many types of air filters available, it can be difficult to know where to start.

By understanding factors such as material, efficiency ratings, size, compatibility, and maintenance requirements, you'll be better equipped to choose the best air filter for your car.

Be sure to consult your owner's manual or a professional mechanic from Goodhood for guidance on which type of air filter is most appropriate for your make and model.

Frequently Asked Questions:

How often should I replace my air filter?

Generally, air filters should be replaced every 12,000 to 15,000 miles. However, this may vary depending on your driving conditions and the type of air filter you have.

What is the MERV rating?

The MERV (Minimum Efficiency Reporting Value) rating is a system used to measure the filter's ability to capture particles of different sizes. The higher the MERV rating, the better the filter's filtration capabilities. However, it's important to note that higher ratings can also reduce airflow and potentially impact your car's performance. For most cars, a MERV rating between 8 and 13 is recommended for optimal balance between filtration and airflow.

How can I tell if my air filter needs to be replaced?

It's important to inspect your air filter periodically for signs of damage or wear. If you notice any tears, cracks, or other damage to the filter, it should be replaced immediately to ensure proper protection for your engine. Additionally, it's important to follow the manufacturer's recommended maintenance schedule for your air filter and replace it as needed.