PR-2 Powered Air Purifying Respirator Blower (PAPR)? Industrial Air Supply System for Dust, Painting, Sanding & Auto Repair Work. ? NOTE: Respirator face piece is NOT included. Blower & accessories only. ? 5800mAh Rechargeable Battery Large capacity battery offers up to 4 hours of continuous working time after fully charged. ? 15W Brushless Motor High power brushless motor with stable performance and long service life. ? Max 600L/min No-load Air Volume Strong airflow delivers steady fresh air circulation for long-hour workshop operation. ? Multi-function Connection Adapters Included Flexible design supports 1 filter canister, 2 canisters, or mixed big & small canister combination. ? Support Long Air Pipe Compatible with air hose up to 20 meters, convenient for various working scenarios. ? WHAT YOU WILL GET. Air pump ×1. 40mm filter ×2. 0.5m air tube ×2. Power plug ×1. Connection Adaptor ×2. English Instruction Manual ×1. Output Voltage: 12.6V. Charging Time: 5 Hours. Battery Duration: Up to 4 Hours. Max Air Volume: 600L/Min (No Load). Working Temperature: -4? (-20?) 140? (60?). Working Relative Humidity: 25% – 55%. Max Supported Air Pipe Length: 20 Meters. ? APPLICATION SCENARIOS Ideal for auto repair, paint spraying, sanding, polishing, dust processing and other industrial workshop tasks. This is industrial respiratory auxiliary equipment, NOT a medical device. It does not include respirator face cover. Please prepare your compatible respirator separately. Filter canisters are replaceable, match with most common 40mm threaded filter cartridges on market.