3M 7502 Half-Face Respirator - Medium H-3393 - Uline
3M Half-Face Respirators; 3M 7502 Half-Face Respirator - Medium. ... Face mask itself changes in size from medium to large. SPECIFICATIONS: Approved by the National Institute of Occupational Safety and Health (NIOSH). ... H-3393 - 3M 7502 Half-Face Respirator - Medium.