Full-face snorkeling masks can indeed be dangerous, and that is due to the increased risk of hypercapnia (elevated CO2 levels) and hypoxia (low oxygen levels) during use, according to a recent study.

Gas masks These are full-face respirators that have a filter cartridge that fits inside a canister. Straps secure the facepiece to form a seal around the wearer’s head and face.

Whether you snowboard or ski, when the temperatures plummet, our faces need protecting, and the best ski masks provide optimal coverage. Here are our top picks in 2024.