Kf94 mask is white. The white mask is lighter in color, which helps to identify the cleanliness of the mask, facilitate timely replacement, and avoid wearing contaminated masks when going out. On the other hand, black is darkness and darkness, and white is light and cheerful. KF94 mask has many colors and thick texture, so it is not recommended to wear it for too long. This mask is quite docile, it won't pinch your feet when you wear it, and the strap is not easy to break. It is cheap and expensive, so it is worth buying.