NBC Filters from MDH Defence
For many years, MDH Defence has designed, developed and manufactured
a variety of NBC filters for use in systems incorporated into combat
vehicles, ships and shelters.
Filtration systems are designed to actively reduce the threat from
agents to acceptable levels within the defined area of protection. They must be designed to counter likely agents over considerable timescales
with the minimum of maintenance and long mean times between failures.
The BIOQUELL Defence Naval NBC Filtration system can be utilised as an
affordable and reliable system.
The NBC Filter Station comprises a frame onto which is mounted a large filter
housing and an electrically driven fan. The system incorporates the NATO
standard 300m3/hr naval composite filter. A small heater is installed within the
This is designed to warm the inside of the unit and reduce
relative humidity, hence prolonging the life of the charcoal within the
composite filter. Air is drawn through the system by the fan and is discharged
into existing air distribution ducting to provide the ship it's overpressure for
collective protection. Control of this overpressure is achieved by a pressure
relief valve which vents air not otherwise lost through general leakage.
- Complies with NATO STANAG 4447 for filter efficiency.
- Utilises standard 300m3/hr NATO Naval composite filter.
- Pressure Relief Valve to control overpressure.
- Unit is available as 600m3/hr if required.
- Integral heater to reduce humidity and prolong filter life.
- Method of construction - mild steel or aluminium.
All filters are produced under strict
environmentally controlled conditions
Advancement in filter
filling techniques, together with special production equipment, have
resulted in the improvement of protection levels against biological
and chemical threats. The latest NBC filters are produced under strict
environmentally controlled conditions to maintain maximum media efficiency.
These improvements in techniques and controls have also resulted in
an increased shelf-life of NBC filters to a period of at least ten
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