Tecmen FreFlow P3 Particle Filter – Replacement Filter Ensure optimal protection and airflow performance with this replacement P3 particle filter for Tecmen FreFlow PAPR air-fed welding helmets and hood systems. Designed to maintain high filtration efficiency, it helps keep your respiratory protection system operating safely and effectively. Compatible With Tecmen FreFlow V1 & V3 Helmets Part Number: SAFE3864 Code: (22 40 01) V1P3 TM3 00 Tecmen FreFlow TM‑H2 Hood Part Number: SAFE3041 Replacement Guidance The frequency of replacing the P3 main particle filter must be determined by the company/user, based on: Workplace risk assessments Internal safety procedures Requirements of governing bodies or industry standards Filters should be inspected regularly and replaced immediately if they show: Signs of clogging Physical damage Reduced airflow performance