Airveda
The Churchill 1 Valve Cambridge Mask is a respiratory protection device that filters more than 99% of particulate pollution, including PM10, PM2.5, and PM0.3, and provides protection from harmful pathogens.
Mask
The Churchill 1 Valve Cambridge Mask is a respiratory protection device that uses British technology developed by the Ministry of Defence to filter air pollutants and particulate pollution. It is designed to provide effective protection from harmful pathogens and pollutants, and is available in different sizes and designs.
Read the user's manual for directions.
The mask filters more than 99% of particulate pollution, including PM10, PM2.5, and PM0.3, and provides protection from harmful pathogens.