These mask are intended to be used for protection against solid and liquid aerosols in wood, cement, glass working, textile, mining and construction environments. They are extremely durable and have a soft and comfortable inner surface with an adjustable nose piece and secured head straps for a proper fit. This mask is designed with low breathing resistance filter media to increase user comfort. ALL FFP1 masks are to be used in situations up to 4 times the Occupational Exposure Level.(OEL).