Nfpa.72 [extra Quality] Jun 2026

You cannot just blow canned smoke at a detector. NFPA 72 requires a "calibrated test method" using a magnet or a meter to ensure the detector is within its listed sensitivity range (e.g., 0.5% to 3.5% obscurity). If it is too sensitive (nuisance alarms) or not sensitive enough (miss fire), it must be cleaned or replaced.

But what exactly is NFPA 72? How is it updated, and why does it matter to your specific building or project? nfpa.72