NV-2021B Breathing Air tube

About the NV-2021B Breathing Air tube

NV-2021B Breathing Air tube for Nova 3 & NV-2000 Blast Helmet

NV-2021B Breathing Air tube air flows into the top of the helmet via the breathing Air hose. The air passes over the the head of the blaster, which is filtered out through a knitted neck band that gently seals against the blasters neck.

Maintaining positive pressure inside the helmet helps keep out potentially harmful dust and abrasive.