3M™ Versaflo™ TR-300+ Powered Air Purifying Respirators are versatile and easy-to-use respiratory protection against particulates hazards. Two types of alarms - one audible and one visual - alert user to either a low battery or low flow, such a when a particle filter is fully loaded. LED lights on the battery indicate its charge status on and off the charger.The 3M™ Versaflo™ TR-307N+ PAPR assembly includes a TR-302N+ PAPR unit, TR-371+ filter cover, TR-327 easy clean belt, TR-332 battery, TR-341N battery charger kit, TR-3712N HE filter and a TR-3600 Pre-Filter.

• Slim, lightweight unit is well-balanced and comfortable to wear for long work shifts
• Two user selectable airflows enable the user to control flow settings to allow the user to find the setting they find most comfortable.
• Blowers automatically adjust airflow to compensate for filter loading to deliver consistent filtered air during use.
• Audible and visual alerts for low airflow and low battery charge-level to keep you prepared and informed
• Able to be worn in a belt or backpack
• Available in convienient, easy to buy assemblies and kits