To apply window film, start by cleaning the window thoroughly to remove any dust or grease. Measure and cut the film to fit the window. Peel off the backing and apply the film to the window, starting from the top and smoothing it down to avoid bubbles. Use a squeegee or a similar tool to press the film onto the glass and remove any air bubbles. Trim any excess film around the edges. Ensure the film is applied evenly and smoothly for the best results.

Apply window film by cleaning the window, cutting the film to size, applying it from the top down, smoothing it out with a squeegee, and trimming excess. This improves insulation and provides privacy.