• NIOSH approved for particulates (99.97% filter efficiency) and hydrogen fluoride gas
• Plastic filter encasement designed for high heat or wet applications
• Channeled airflow protects filter for enhanced breathability and longer service life
• Unique, spring-loaded filter cover design simplifies negative pressure user seal checks
• Nuisance odor relief for acid gas levels below the Permissible Exposure Level (PEL)

WARNING: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.