NBC shelter
An NBC shelter is a very specialized construction designed not just to protect from blast effects and shock  waves.  An NBC shelter protects from the immensely powerful shockwave following a nuclear explosion and from the resulting radiation.  The NBC shelter   also provides protection from other contaminants resulting from a biological or chemical attack.  I think it will be obvious that the parameters the NBC shelter  is required to cope with and the solutions that an NBC shelter  is required to provide, make its construction a very complex procedure that demands thought, technology and great attention to detail.  These factors also make the NBC shelter an expensive proposition.

 
Who needs and NBC shelter?
To be honest, in today's hostile environment with the constant threat of terrorist action around us, we all need an NBC shelter.   Having said that, the cost is prohibitive and not everybody has the possibility to erect an NBC shelter.  An NBC shelter is either a large public facility, funded and built by the state or a facility for the use of essential security and military units, police units, medical facilities and logistical and coordinating facilities.  Some vital infrastructure installations may have an NBC shelter to protect vital personnel and equipment.  This could include power stations, oil refineries, air traffic control systems and major communication control centers.

 
NBC shelter considerations
Should you be in the position to consider constructing an NBC shelter or purchasing a purchasing  a mobile NBC shelter then there are a few important considerations you should know about.

Placement – a permanent NBC shelter should be constructed, ideally, underground and on bedrock!  Whether permanent or mobile, never place an NBC shelter over an underground water source!  Never near gas mains!

Check with civil defense authorities for NBC shelter construction and material protocols.  This is vital because ordinary reinforced concrete, though strong, isn't strong enough to withstand a nuclear shock wave.

The NBC shelter also protects from biological and chemical contaminants.  This means the shelter should be air tight and have reliable air filtration and air supply systems that can be serviced and repaired from inside!  Again, check with local civil defense authorities for relevant standards.

Power – all emergency equipment will need power.  So long as mains power is available for the NBC shelter there is no problem.  But a backup generator that can be operated and serviced from inside is vital.  Additionally, a good supply (a least a week) of battery packs.

Water – as with power and air, vital!  Incorporate water filtration and purification system inside the NBC shelter and stock at least two weeks supply of bottled water.  Remember, you can survive without food, but not without water.

The "GABRIEL II" is mobile, bullet and blast proof, protected from chemical & biological weapons and well suited for use by emergency and security authorities.
The "GABRIEL II" design incorporates the lessons of the past and the needs of the future, making it the optimal solution for operational missions in the coming conflicts.
The design process equally combined protections from conventional and chemical/biological threats.
The "GABRIEL II" Allows for full functionality under conditions of conventional and/or chemical & biological warfare, thanks to its unique protective casing, advanced washing, filtering and cleansing systems, and its ultimate design which is based on years of experince and know-how.

Features:

• Bullet, shrapnel, explosion proof and Bio/Chemical shelter against all types of known chemical and biological warfare agents. Provides protection for 12 to 20 people within a gas-proof environment.
• Easily transportable by crane-mounted truck, arm-lifter and/or forklift. Suitable to all locations, without previous preparations.
• Appropriate in red-zone deployments, combat areas, chemical plants, field hospitals, electric power stations, and mobile command centers.
• Filtering system purifies the air and allows a 24x7 operation. A monitoring valve system eliminates rarefied air within the shelter through a decontamination chamber and washing room.
• A 400-liter (102 gl) water tank, operated by gravitation or an electric pump, supplies drinking water and other applications. Air-condition; 110/22OV AC self-powered generator.
• The shelter roof includes external thermal protection, with an option to convert the shelter into an inner thermal and soundproof shelter.
• The shelter is equipped with a chemical lavatory and sink, allowing for an extended stay.
• Entrance to the shelter in hostile conditions is facilitated through the washing room followed by the decontamination chamber - both pressurized. Power supply inputs, communications, water and conditioned air with bulletproof protection and BC purification system.