How efficient is a "P-100" respirator at removing small particles?

A "P-100" respirator is designed to filter out at least 99.97% of airborne particles that are 0.3 microns in size or larger. This rating indicates that the respirator is highly effective at providing respiratory protection, particularly in environments where there may be a risk of exposure to hazardous contaminants, including biological agents, dust, and other small particles.

The designation "P" signifies that the respirator is resistant to oil, making it suitable for use in various industrial and healthcare settings where oil-based aerosols may be present. The "100" indicates the efficiency level, meaning it meets rigorous standards set by the National Institute for Occupational Safety and Health (NIOSH) for particulate filter performance.

This high level of filtration efficiency makes the P-100 respirator a critical piece of personal protective equipment, particularly when dealing with trauma and crime scene cleanup, where one might encounter a variety of small and potentially harmful particles.