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Is it necessary to install window rain deflectors?

4 Answers
FrankDella
07/29/25 4:38pm
If you live in an area with frequent rainfall, then installing window rain deflectors is necessary. The functions of window rain deflectors: Since most car windows are not vertical, opening the window on rainy days can cause rainwater to enter the car. The width of rain deflectors is 2-3 cm. As long as the window glass is not lowered beyond the width of the deflector, it not only allows fresh air to flow in and expel stale air from the car but also helps to lower the interior temperature to some extent. The drawbacks of window rain deflectors: After installing window rain deflectors, an 8 cm visual blind spot can occur at the A-pillar when turning, and deflectors with poor light transmission can increase the A-pillar blind spot. Additionally, at high speeds, rain deflectors can increase wind noise.
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Luis
08/14/25 5:59am
I find the window rain visors extremely practical, especially when driving in rainy areas. After installation, you can slightly open the windows for ventilation during rain without water pouring in, preventing stuffiness inside the car and reducing the risk of fogging. I frequently use this feature during the rainy season, and it's also quite convenient when smoking, eliminating the need to constantly run the air conditioning to save power. Installation is straightforward—just purchase a pair of high-quality rain visors and spend some time attaching them yourself; it's neither costly nor labor-intensive. However, it depends on the car model's design, as some vehicles might experience slightly increased wind noise after installation, but overall, it doesn’t affect driving. Regularly checking for adhesive strip aging can extend their lifespan. They’re definitely worth trying.
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Roberto
10/13/25 2:13am
From a daily perspective, whether to install rain guards depends on personal needs. For my daily commute, I find they enhance comfort by allowing a small gap for fresh air during rainy days, keeping the car neither damp nor stuffy. However, if you live in a consistently dry and rain-scarce area, installation might be unnecessary to avoid extra maintenance. There are various styles of rain guards available; choosing one that matches your car color adds a touch of elegance. Avoid overly wide ones to prevent excessive noise at high speeds. They're generally affordable, costing around a hundred yuan, and make cleaning the windows much easier after installation. I recommend giving them a try.
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VanCourtney
11/26/25 3:12am
From an economic perspective, the installation cost of rain guards ranges from tens to a hundred yuan, offering high cost-effectiveness. I've done the math: they reduce the need to open windows in the rain, save fuel by minimizing AC usage, and eliminate the hassle of frequently wiping windows. In the long run, it's a small investment with significant returns, especially for drivers in frequently rainy areas. If unsure, opt for adhesive-type guards for a trial installation—they can be replaced if unsatisfactory. Avoid cheap products to prevent adhesive strips from falling off easily. Overall, it's a very cost-effective choice.
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