This Half face respirator is made by Dentec and is a size Medium. Its model is the ComfortAir it costs about USD40. It has a High nose bridge height, and its facepiece is made of Silicone. The width min and max distances, in inches, curving from mid cheek to mid cheek are 2.5 and 5 respectively. The distance in inches, straight up and down in the middle along the nose line is a minimum of 3.25 and a maximum of 5. The average depth of the mask is 1.775 inches. You can find more information about this mask at https://dentecsafety.com/usa/product/comfort-air-series-100-silicone-mask-diskit-p100ov-filters/. This mask weighs about 129 grams. NX series available with source control