The 3M Half Facepiece Reusable Respirator 7503 (Large) is a premium, durable, and comfortable respirator designed for environments requiring protection against particulates, gases, and vapors. It features a soft silicone face seal and a specialized valve to reduce heat, making it suitable for long-term use.
Key Specifications:
Size: Large (7501=Small, 7502=Medium, 7503=Large)
Material: Advanced Silicone Rubber (facepiece), Polybutylene Terephthalate (valve covers)
Color: Light Blue
Weight: ~135 grams (0.31 lbs)
Connection Type: 3M™ Bayonet Connection (compatible with a wide range of filters/cartridges)
Harness Type: 4-point adjustable with optional drop-down feature
Compliance: NIOSH-approved (up to 10x Permissible Exposure Limit - PEL)
Shelf Life: 5 years from production date.
Core Features & Benefits:
3M™ Cool Flow™ Valve: Proprietary exhalation valve reduces breathing resistance and minimizes heat and moisture build-up.
Drop-down Feature: Allows the mask to be removed from the face without removing hard hats or safety glasses.
Advanced Silicone Material: Pliable, soft seal enhances comfort and durability.
Dual-Mode Harness: Adjustable for traditional or drop-down mode.
Low-Profile Design: Minimizes interference with vision.
Compatibility (Filters & Cartridges):
The 7503 respirator uses the bayonet system, allowing it to work with:
3M™ 2000, 2200, 7000, or 5000 Series Filters: For dust, fumes, and particulates.
3M™ 6000 Series Cartridges: For gas and vapor protection.
3M™ Dual Airline Systems: For supplied-air functionality.
Recommended Applications:
Abatement and Mining
Painting and Welding
Chemical Handling and Clean-up
Construction and General Manufacturing
Pharmaceutical Production.
Maintenance:
Cleaning: Use 3M™ 105 face seal cleaner or warm water with a mild detergent. Do not exceed 50°C.
Spare Parts: Available to maintain functionality, including straps (7580), valves (7582, 7583), and filter holders (7586).
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