Triple alarm system creates an audible, vibratory and visual alarm to warn workers of battery life and or filter clog Vibratory alarm can be felt even through welding jackets; warns workers who are hearing impaired or in hign noise environments Two visual alarms:one for low battery and separate one for a clogged filter; workers will known the alarm reasons and maintain the PAPR Airflow is automatically adjusted to meet OSHA and CSA CFM