Where is the air intake for the car's internal circulation located?

[SanHadley]

AC system's internal circulation air intake is located on the passenger side, at the lower part of the dashboard glove box. Below is relevant information about internal circulation: 1. Advantages: Internal circulation mainly prevents external dust and harmful gases from entering the vehicle in a timely and effective manner. For example, when driving through areas with smoke, dust, odors, or in dense traffic, it blocks harmful exhaust emissions from vehicles ahead. Internal circulation can enhance the cooling and heating effects of the AC and provides better insulation. 2. Disadvantages: Prolonged use of internal circulation can reduce air quality inside the vehicle, potentially causing dizziness. It's advisable to switch to external circulation for a few minutes after using internal circulation for a while, allowing fresh air to enter and improve air quality.

[DeEverett]

I've been driving for over thirty years and have seen the air intake vents for the recirculation mode in many car models. They're usually hidden under that plastic cover right below the front windshield. To be more specific, if you squat down and look at the area around the base of the wipers, you'll see a row of small mesh-like holes—that's the intake vent. When the car's air conditioning is in recirculation mode, air is drawn in through these vents to be reused, preventing outside dust and odors from getting in. I remember one time when leaves clogged my car's intake vent, causing the AC to blow air with a strange smell. After cleaning it out with a small brush, everything was fine. I recommend car owners check this spot during maintenance, especially after the rainy season when leaves tend to accumulate. A blockage can affect air quality and even slow down the AC cooling. Regular maintenance can save you a lot of hassle.

[Jodie]

As someone who loves studying cars, I always pay attention to these small details. The design of the car's interior circulation air intake is quite ingenious—it's usually located at the sloped area where the windshield and dashboard meet, appearing as a grid or small holes. Why do designers choose this spot? Primarily because it's positioned high, avoiding road dust while maintaining good airflow, allowing fresh cabin air to be quickly drawn in when recirculation is on. Some premium models even feature additional filters to help trap particles. I enjoy DIY modifications, like adding an air filter sheet near the intake to enhance filtration. When the intake gets clogged, the AC emits a noticeable humming noise, requiring vacuum cleaning. Understanding the intake location helps detect issues early, prevents system wear, promotes eco-friendly travel by reducing reliance on external air, and lowers emissions.

[DiKendra]

The air intake for my car's recirculation mode is located right below the windshield. Simply put, if you pop open the hood or peek near the driver's footwell, you'll spot a row of grille vents. When the AC is on and switched to recirculation mode, the fan draws cabin air from here for circulation. I frequently use this feature while driving, especially in traffic jams—it cools down the cabin quickly and avoids sucking in exhaust fumes. Cleaning is easy too, just gently brush the grille with a small brush. The location is convenient and user-friendly, no technical skills required.

[AnnieDella]

I'm just starting to learn some car knowledge. The intake vent for the recirculation mode is usually located on the plastic panel beneath the front windshield, near the foot pedal area, specifically covered by a row of small grilles. The position is designed to prevent dust from entering the AC system, and activating recirculation mode can block external odors. I've tried locating it myself: after parking and turning off the engine, I crouched down to inspect the grilles. If you find debris clogging the vents, first use compressed air to blow them clean or brush them off. Blockages can cause loud AC noise, reduced cooling efficiency, or even strange odors. Regular maintenance can extend your AC's lifespan, and checking it is easy—you can do it yourself without spending much on repairs.