FFP3 cup shaped filtering facepieces with Active Shield electronic valve
Anatomic
The pre-formed and elastic support makes an easier and reliable fit to all kinds of faces. It offers an excellent visual field and great compatibility with glasses.
Intelligent exhalation valve
Narvalo Active Shield is the innovative air extraction valve for FFP3 masks developed by Narvalo, a start-up and spin-off from Politecnico di Milano, with BLS and POLIHUB. This intelligent valve ensures optimal breathing comfort, thanks to an adaptive fan that reduces humidity and extracts CO2 ensuring maximum freshness during use.
Lithium battery
This valve is equipped with a rechargeable lithium battery (800 mAh) that gives the device more than 8 hours of autonomy. The recharging socket is a micro USB located on one side of the product.
Adaptive ventilation
The adaptive ventilation system extracts the CO2 produced during breathing and reduces the moisture accumulated inside the mask. The ventilation is adjusted automatically and adapts to the user’s breathing.
Armor? layer
It is an external protective layer that ensures the protection of the filtering material from dirt, dust and liquids as well as the normal mechanical stress due to prolonged use thus extending and preserving filtering efficiency and making the device safer.
CERTIFICATION
BLS Zer0 32 Active filter facepieces have been certified in combination with Narvalo Active Shield valve.
