The M77 Full Face Mask is an industrial-grade positive pressure diving system engineered for extreme underwater operations. It delivers uncompromising safety and performance in hazardous environments like offshore oil rigs, deep-sea salvage, military reconnaissance, and polar expeditions.
Safety Pressure Mode activates upon the first breath, instantly establishing internal positive pressure to prevent water ingress—critical in sudden depth changes or contaminated conditions.
Featuring a five-strap harness with stainless steel buckles and a wide silicone seal, the mask achieves near-perfect facial adhesion (leak rate <0.01%), a level of precision we also guarantee for our commercial dive helmet for sale. Optimized gas flow minimizes CO₂ retention (<250ml dead space), while anti-jam valves ensure reliability in silt, oil, or freezing currents. Integrated purge buttons enable one-handed water clearance, and compatibility with comms systems supports coordinated missions.
| Product name: | M77 Full face mask |
| Material | Mask body: Natural rubber or Silicone Visor: Polycarbonate with glass fiber Membrane: Natural rubber |
| Performance | Designed for use in cold-water dives. temperature range of: –30 to +70 C° Medium pressure range: 5-11 bar opening pressure: 12-20bar |
| Connections | Breathing valve LP connection M16x1 male First stage regulator Connection UNF3/8 inch |
| Strap: | 5nos.straps |
| Color: | Black Diving Mask |
| Packing: | Carton Box |
| Feature: | Positive Pressure |
Smart Dual-Pressure Safety: 0.3s auto-deploy positive pressure barrier.Activates on first breath to maintain internal pressure > ambient water pressure.
Military-Grade Dynamic Seal: 5-point harness + medical silicone sealing.Leak rate<0.01% with <250ml CO₂ retention – delivers 3x longer dive time versus conventional masks.
Extreme Environment Reliability: Zero-failure in -2°C/oil/silt.Anti-crystallization valves validated through 500+ freeze cycles.
Tactical Comms Integration: 20-100kHz digital-ready interface.Seamless voice transmission (90dB clarity) in turbid waters.
