Respiratory Air Sources
Allegro™ Ambient Air Driven Pump A‐4000AD, 4-Worker Connection
Portable air source for up to four full or half-face respirator users, or three hood users. Ideal for use when electric power is unavailable or undesirable.
Allegro™ Ambient Air Pump, Model A-750
Portable and lightweight air source for one hood use, or up to two full- or half-face respirator users
Allegro™ 9872 FIlters
NIOSH-approved filtration assemblies are replacement parts for wall-mounted and portable 9872 panels.
MSA™ Constant Flow Airline Accessory, Cartridge Holder Assembly
Cartridge holder assembly for use with MSA constant flow airline systems.
MSA™ Airline Filter
High-efficiency filtration of compressed breathing air
Allegro™ Ambient Air Pump, Model A-300
Oil-less ambient air systems for use in environments where an outside air source is required. Does not require carbon monoxide monitoring equipment. Choose from hansen or schrader fittings.
Allegro™ Filter Elements for Ambient Air Pumps
Ambient air pump replacement filter elements help provide safe breathable air to workers in environments with low oxygen levels or compromised air quality.
MSA™ Universal Audi-Larm™ Low Pressure Warning Device
Designed for use with with portable air-supply systems.
Allegro™ Compressed Air Respirator Accessory, Personal Air Cooler with Belt and Hansen Fitting
Filtered compressed air source accessory changes the temperature of the delivered air to keep workers comfortable.
Air Systems™ Auto-Air™ Breather Box™ Air Filtration System Accessory, Particulate Filters
For use with Auto-Air Breather Box.
Air Systems™ International Remote Replacement Cylinders
Disposable replacement cylinders for accurate calibration
Air Systems™ Auto-Air™ Breather Box™ Air Filtration System Accessory, Calibration Kit
Kits for use with Carbon Monoxide (CO) monitor.