Interspiro of Sweden is the manufacturer of this full-face SCUBA mask used by military, police, search and recovery, and commercial divers around the world. You can get them in black (military or MKII version), grey and yellow color. 

Constant, slight positive pressure prevents contaminated water from leaking in. For diving in clean water it can be supplied with a breathing valve without positive pressure.

Flushing the inside of the visor with dry air keeps the visor free from condensation.

Airways are designed to provide very low breathing resistance and to minimize "dead space" volume and thus prevent build up of carbon dioxide.

It features an integral adjustable pressure equalizer and is designed for use with diving telephone. Te breathing valve with non-return valve minimizes the risk of ice being to form in the inlet port. A purge button makes it possible to drain any free water out of the valve.

The second stage AGA regulator is highly regarded for its performance.

 
In this pictures you see the mask without the regulator unit. The black silicon version is the military version that is also referred to as the MKII. Have a closer look at our watermark in this modern section: yes, it is the AGA mask !