Car Ventilation and Recirculation Explained - How Cabin Air Flows

How car ventilation works, and how recirculation changes the air flow. I show the air intake vent, cabin air filter, blower motor, recirculation flapper, and the exhaust vent through which air flows out. Note, that with recirculation turned on, CO2 levels can build up, and for anyone interested in measuring CO2, there is a link to a meter below. Amazon Affiliate Links ➡️ Aranet4 CO2 Meter (Wireless) *: https://amzn.to/3Tm33E4 * NOTE: Should not be used in freezing temperatures! Recommended operating temperature of the sensor is 0 °C to 50 °C (32°F to 122°F). As an Amazon Associate I earn from qualifying purchases. If you place an order, thank you for supporting my channel! Car Air Flow, HVAC, Air Intake Duct, Blower Fan, Blower Motor, Exhaust Vent, 2014 Corolla ⚠️ DISCLAIMER: Use of the information in this video is solely at your own risk. The creator of this video assumes no liability for any property damage, injury or expenses incurred as a result of any of the information contained in this video. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. The creator of this video makes no claims, promises or guarantees about the accuracy, completeness, or applicability of the procedures and instructions contained in this video. Any injury, damage, or loss that might occur as a result of improper application, improper use of tools or equipment, or from the information contained in this video, is solely the responsibility of the user.