Protective masks are worn in many industries to protect the people working there from potentially harmful gases or vapours. With its sophisticated design, the 3M 6500QL Half Mask Series provides excellent wearing comfort. An innovative injection moulding process was used to create the silicone facepiece, ensuring that the mask adapts comfortably to the face and keeps its shape even in high-heat work environments. The design of these half masks unites all necessary elements in a perfect manner, whereby the innovative Quick Latch mechanism is a particularly fascinating functional detail. It allows users to quickly and intuitively take the mask on and off as they move in and out of contaminated areas without the need to remove a hard hat or face shield. This is an enormous advantage, especially considering that these 3M silicone half masks in combination with particle filters can be worn under welding helmets and face shields. The 3M Cool Flow Valve further increases safety. Its specially designed valve cover reduces heat and moisture by directing exhaled breath downward to reduce fogging of the eye guard. An entirely successful re-interpretation thus produced half masks that combine a new level of wearing comfort with maximum safety.