【Thickened Plastic Material】Crafted from food-grade, impact-resistant plastic, this ceiling air diverter stays rigid and flat through extreme temperature changes, it won’t warp, sag, or turn yellow from prolonged use, maintaining its smooth, draft-free airflow year after year 【Grid & Louver Dual-Surface Design】The back features an open grid for smooth airflow, while the front has angled louvers that gently redirect air, this dual-layer structure acts as a vent baffle, balancing cooling efficiency with draft-free comfort 【Snap-On Installation for Secure Fit】The built-in snap mounts clip directly onto the corners of your ceiling cassette, no drilling or tools are needed, making this ceiling shield easy to install and remove for seasonal cleaning 【Precision Air Distribution, No Dead Zones】The angled louvers spread cool air in a wide, diffused pattern instead of blasting straight down, this airflow spreader ensures even cooling across large spaces, so every seat in the office stays comfortable 【Discreet White Finish】The slim, square profile blends seamlessly with standard ceiling cassette units, the smooth, matte white finish doesn’t draw attention, keeping your office ceiling looking clean and professional year-round