Glass that has been toughened by special process to increase its strength. Unlike regular glass, tempered glass is extremely hard to break. Once tempered, the glass panel is almost impossible to cut or modify – this is why mounting holes and beveled edges are cut at the factory before the tempering process.

The tempered glass used on ProLine range hoods is clear transparent, although it may be colorized on some photos to make the glass stand out against the white background. It is worth noting that due to the chemical changes during the annealing process, the edge of tempered glass will have a slight green tint to it (same as other forms of tempered glass, such as auto glass or security glass).