PolyGARD silicone 7500 reusable half face mask provides long-term respiratory protection. The soft silicone material is comfortable and durable. The dual filter design facilitates breathing by distributing the flow of inhaled and exhaled air on both sides so that the wearer feels as little shortness of air as possible. The half mask comes with a filter attachment system that allows you to attach a variety of double lightweight filters to protect against gas, vapor or particles. The valve facilitates breathing and reduces the accumulation of moisture and heat. With almost no difficulty breathing, the temperature inside the mask is lower and you will feel more comfortable. Meets the requirements of EN140: 1998 standard .