Are rain guards effective?

[Valerie]

Rain guards are accessories installed along the upper edge of car doors, protruding outward to provide shade for the windows, and they are quite effective. Here are some relevant details: 1. The main functions of rain guards: After installation, the protruding part can block rainwater, allowing the windows to be slightly lowered without issues. Opening the windows ensures air circulation inside the car, reducing the likelihood of window fogging. It also helps dissipate smoke when smoking, and most importantly, you don't have to worry about getting wet from rain. 2. Disadvantages of rain guards: Rain guards can increase wind noise, add air resistance while driving, and consequently raise fuel consumption.