The Tayhamn Half-Mask TH7900 is equipped with an adjustable headrest and headband, which fits different head shapes and can withstand extreme conditions and long-term use. Its flexible silicone seal maintains its shape even at high temperatures to extend service life. It also features a built-in high-quality microphone for convenient on-the-job communication, paired with a dedicated valve cover (that guides exhaled air downward) and a cold-flow exhalation valve (that reduces heat and moisture), further enhancing the user experience.