Version: The lightweight TH3 blower respiratory protection system combines efficiency, comfort, and performance. It is also versatile for a variety of tasks. The airflow is adjustable (100-130 l/min) and can be set in stages. The height and temperature can be compensated through automatic measurements. The device is individually adjustable in length and width. The half mask is made of POM (thermoplastic plastic) and tear-resistant textile, featuring an exhalation valve with a silicone membrane. This ensures an independent air supply. Battery and filter notifications are provided both acoustically and visually. Power supply: rechargeable lithium-ion battery, 3.6 V / 6.5 Ah, USB-C connection. Note: The SwissAir blower respiratory protection system is delivered without a filter. Additional accessories and spare parts: Half mask No. 098224, housing cover No. 098225, spark guard No. 098226, battery No. 098227, extension of the carrying unit No. 098228, fabric protection No. 098229. Delivery includes: SwissAir blower respiratory protection system consisting of a comfort half mask, blower unit, hose connections, head and neck strap, shoulder carrying unit, control panel, and charger including optrel backpack.