Overview
The North N7500-4 respirator cartridge is a NIOSH-certified air-purifying cartridge engineered to protect against ammonia and methylamine vapors in industrial and chemical environments. Each box of 3 pairs provides six individual cartridges with proven sorbent technology for dependable respiratory protection. These cartridges are part of North Safety’s trusted respiratory protection portfolio and integrate seamlessly with compatible half-mask and full-facepiece respirators.
Key Features
- Green color-coded design for quick visual identification of ammonia/methylamine protection
- NIOSH-approved for use in regulated workplace environments
- Dual-protection against ammonia (AM) and methylamine (MA) vapors
- Low-profile cartridge design prevents snagging on equipment or pipes
- Compatible with multiple North respirator facepiece models for flexibility
- User-friendly seal check design for proper fit verification
Technical Specifications
- Manufacturer: North Safety / Honeywell North
- Part Number: N7500-4
- Protection Type: Ammonia (AM) and Methylamine (MA)
- Color Code: Green
- Packaging: Box of 3 pairs (6 cartridges total)
- Certification: NIOSH approved
- Cartridge Profile: Low-profile with curved top design
- Media Type: Activated sorbent cartridge
Typical Applications
The North N7500-4 cartridge is widely used in:
- Chemical manufacturing and processing facilities
- Fertilizer production and handling operations
- Refrigeration system maintenance (ammonia exposure)
- Food processing and preservation plants
- Wastewater treatment facilities
- Industrial cleaning and sanitation operations
- Any environment where ammonia or methylamine vapors are present at regulated exposure levels
Compatibility & Replacements
Compatible With
- North Safety 5500 Series half-mask respirators
- North Safety RU8500 series respirators
- North Safety 7700 Series half-mask respirators
- North Safety 5400 Series full-facepiece respirators
- North Safety RU6500 series respirators
- North Safety 7600 Series full-facepiece respirators
Replaces / Drop-In Replacement For
The North N7500-4 is the standard ammonia/methylamine cartridge for North Safety respirators. All North cartridges are interchangeable across North 5400, 5500, 7600, and 7700 series facepieces. Verify compatibility with your specific respirator model and ensure compliance with your workplace respiratory protection program before ordering.
Works With
- North Safety air-purifying respirator systems
- OSHA-regulated respiratory protection programs (29 CFR 1910.134)
- Industrial hygiene monitoring and compliance systems
- Cartridge replacement schedules per OSHA requirements












