Envo Pro N99 Kit Respiratore con Valvola di Espirazione Incluso Copricapo Holo, 3...
NIOSH-APPROVED: Approved by the National Institute for Occupational Safety & Health (NIOSH), the reusable N95, N99 envo pro and N95 envo pro respirator are designed for superior comfort and seal. Approval Number 9450 (Envo Pro N99 Half Mask).