Description
The Allegro 9873‑40 Wall‑Air Filtration Panel with CO Monitor (1‑Worker) is a compact, rugged compressed‑air purification system designed to convert shop or plant air into clean, OSHA‑compliant Grade D breathing air for a single supplied‑air respirator. Featuring a three‑stage filtration system, it effectively removes water, oil, hydrocarbons, and particulate contaminants before delivery through the airline.
This wall‑mount unit delivers up to 15 CFM of purified air at operating pressures between 5–125 psig and is constructed with durable all‑brass plumbing and quick‑disconnect Hansen couplers for secure hose connections.
An integrated carbon monoxide (CO) monitor continuously checks air quality and activates both audible and visual alarms if harmful CO levels are detected, helping ensure worker safety. The CO monitor operates on 115 V AC with a 9 V DC battery backup, with an electrochemical sensor and user‑friendly LCD display.
Designed for industrial settings such as painting, manufacturing, maintenance, and utility work, this wall‑mounted filtration panel keeps breathable air flowing to your supplied‑air respirator while preserving valuable workspace floor space.




