The use of all ventilation elements, such as fresh air vents and ventilation inserts for sliding windows, is only permitted for stationary vehicles. Therefore, all ventilation elements must be removed before starting a journey. We advise against using any ventilation elements, such as fresh air vents and sliding window vents, during extreme weather events such as heavy rain. In such cases, remove all products immediately and close all windows completely to prevent water from entering the vehicle interior. All ventilation elements, such as fresh air vents and sliding window vents, must be completely removed before entering car washes. Installed products in the vehicle must never be cleaned with a high-pressure cleaner. In extreme summer temperatures and during extended use, our products can become very hot. Therefore, please be especially careful when installing or removing them. We recommend allowing a short cooling period in the shade. All ventilation elements, such as fresh air vents and sliding window vents, ensure good air circulation. Nevertheless, high temperatures can develop inside the vehicle. Even if you are only leaving the vehicle for a short time, please never leave a child or animal, such as a dog, unattended in the vehicle. Some of the 314 product series use knurled knobs. These could be twisted off the product and swallowed by small children. Therefore, please keep the product out of reach of children. All fresh air vents and ventilation elements are delivered in polybags. There is a risk of suffocation for children if these are pulled over their heads. Therefore, please do not store any of our products in the polybag and store them in a child-safe manner.