Freedom of motion through simplicity and innovation. The M2.5 Mask is unparalleled in its class. It’s lightweight and slim design features a full mesh main body construction, resulting in improved airflow and breathability to seamlessly integrate into any user’s job or adventure. Dominating protection and performance through its 99.9% replaceable Active Carbon Filter. The M2.5 is your lightweight air filtration mask, ideal for those who stay in motion.