Sunshades have both advantages and disadvantages, and can be chosen based on needs. Advantages of sunshades: Protect the dashboard from damage such as cracking and aging caused by direct sunlight exposure, while also reducing the interior temperature, indirectly improving the effectiveness of the car's air conditioning; during the day, they prevent reflection and reduce sunlight refraction on the windshield that can create glare, ensuring clear driving visibility; at night, they minimize light refraction, reducing blind spots caused by roadside lights reflecting off the dashboard onto the windshield. Disadvantages of sunshades: The dashboard is a high-temperature area that requires better heat dissipation. Using multiple covers in the summer when interior temperatures are already high can impede heat dissipation. When wind blows onto the dashboard, dust trapped in the sunshade can flow back with the wind directly into the faces of front-seat occupants. Precautions for using sunshades: Some dashboards are made of soft plastic, and using sunshades with poor-quality adhesive strips may cause corrosion. Always purchase genuine sunshades or opt for non-adhesive sunshades with good anti-slip effects; choose vehicle-specific sunshades and ensure they leave necessary gaps to avoid interfering with safety features like airbags; if a sunshade emits odors after prolonged sun exposure, it may be a substandard product and should be replaced immediately.
