Centers for Disease Control and Prevention (CDC) 176d ago

This video explains how NIOSH-approved respirators protect workers from a wide range of airborne hazards. Learn what aerosols are, why “a particle is a particle,” and how respirator filters capture particles through mechanical and electrostatic methods. The video also describes NIOSH respirator certification, including N95 filtering facepiece respirators, and explains why certification testing uses worst-case conditions to ensure high levels of protection across healthcare, construction, laboratory, and other work settings. This video can also be viewed at https://www.cdc.gov/niosh/video/A_Particle_is_a_Particle_LoRes.mp4