ASTM Level 1 masks are foundational components of infection control in healthcare and public settings. These masks adhere to the stringent standards established by the American Society for Testing and Materials (ASTM), ensuring a basic yet essential level of protection. Designed primarily for use in low-risk, minimal-fluid-exposure scenarios, Level 1 masks provide a reliable barrier against respiratory droplets, bacteria, and particulate matter. They typically feature a three-layer construction, including a fluid-resistant outer layer, a filtration layer, and an inner layer for comfort during extended wear. ASTM Level 1 masks are comfortable and breathable, making them suitable for everyday use. While they offer a basic level of protection, they play a crucial role in reducing the transmission of respiratory infections and are commonly used in healthcare settings, dental practices, and public areas where infection control is essential. These masks reflect a commitment to safety and hygiene, serving as a fundamental tool in mitigating the spread of respiratory threats.