We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is an Air Deflector?

By Lori Kilchermann
Updated May 23, 2024
Our promise to you
WikiMotors is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At WikiMotors, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

An air deflector is a device mounted on a vehicle to alter the flow of air. Typically attached to the hood, the air deflector changes the flow of air traveling over the nose of the vehicle so that it flows over the windshield and does not make contact with the glass. This prevents bugs from hitting the windshield and creating a difficult-to-remove mess. Some air deflector installations mount the deflector over the rear window of the vehicle. Often used in minivans, station wagons and sport utility vehicles (SUVs), the deflector alters the air flow over the rear of the vehicle and keeps dirt and debris off of the rear glass.

Occasionally referred to as a bug deflector due to the results of its actions, an air deflector does not always produce positive results. In rainy situations, the deflector often alters wind flow over the front of the vehicle so effectively that it prevents the windshield wipers from operating as intended. As the altered air flow travels up and over the nose of the vehicle, it often sucks the windshield wipers up and off of the windshield. This creates a dangerous vision situation that can hinder the operator's ability to clearly see the road in front of the vehicle.

One solution to this problem is often seen on large tractor trailer rigs. When possible, positioning the air deflector away from the leading edge of the vehicle's hood and slightly closer to the windshield often cures the problem. It may take several attempts to discover the proper location where the air deflector will avoid creating the windshield wiper interruption. When attempting to find the correct mounting position for the air deflector, the use of double-sided tape to temporarily mount the deflector brackets will prevent drilling several mounting holes in the vehicle's hood.

When mounting an air deflector on the rear of a vehicle, it is important to position the deflector squarely on the center. Carefully measuring each side of the deflector will allow it to be positioned evenly over the rear window of the vehicle. By altering the flow of air over the rear of the vehicle, the turbulent air pocket behind the vehicle is moved farther away from the rear window glass. This eliminates the majority of dirt being kicked up by the vehicle as it travels on the roadway and keeps it from sticking to the rear glass.

WikiMotors is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Discussion Comments
WikiMotors, in your inbox

Our latest articles, guides, and more, delivered daily.

WikiMotors, in your inbox

Our latest articles, guides, and more, delivered daily.