Material: Face masks are typically made from various materials, such as cloth, paper, or synthetic fibers. The material used can affect the mask's filtration efficiency and comfort.

Layers: Many face masks have multiple layers, each serving a specific purpose. For example, a triple-layered mask may consist of an outer layer for moisture resistance, a middle layer for filtration, and an inner layer for comfort against the skin.

Elastic Straps or Ties: Face masks are designed to stay securely in place over the nose and mouth. They often have elastic straps that loop around the ears or ties that can be secured behind the head.

Nose Wire: Some masks include a flexible wire along the top edge that can be molded to the shape of the nose. This helps in creating a snug fit and preventing air from escaping or entering through gaps.

Filtration: The effectiveness of a face mask in filtering out particles depends on its design and the materials used. Masks may be labeled as surgical masks, N95 respirators, or cloth masks, each with varying levels of filtration capacity.

Usage: Face masks are worn in various situations, including healthcare settings, public transportation, crowded places, and during activities where maintaining physical distance is challenging.