breathable
breathable
Adjective
In the context of textiles, this term describes a specific functional property where moisture vapor can escape from the body through the fabric, preventing the wearer from feeling clammy. It is a key marketing term in athletic wear and outdoor gear, often contrasted with waterproof materials that may trap heat and sweat.
When applied to air quality, the word shifts from a physical property of a material to a safety assessment of an environment. In this sense, it indicates that the atmosphere contains sufficient oxygen and is free from toxic pollutants or suffocating gases, making it safe for human respiration.