The Trend Airshield Pro Respirator is a fully protected powered respirator for use with all woodworking applications and is suitable for use when machining MDF. It is approved to new standard BS EN 12941. New features include:Combination face-seal and hood to improve protection.Motor positioned away from the sensitive area of the forehead to reduce noise and irritation.Attachment points for optional ear defenders.Strategic component distribution ensures optimum centre of gravity is achieved for balance and comfort.Twin filters with efficiency of 98%, more than double the Airshield MK1.Audible low battery warning.Removable 8-hour NiMH battery. Specifications: Rating: DIY/Craftsman/Professional.Airflow Min: 160 l/Min.Airflow fully charged: 200 1/Min.Size of headband: 52cm - 62cm.Motor sound level: 70 dB.Battery: 8-hours NiMH battery.