LUNOR ventilation systems provide protection against nuclear, biological and chemical NBC contamination.
The ventilation system of the VA-40/75/150 series shelters protects people and equipment in emergency situations.It was originally desgined and developed to protect against the effects of weapons, such as air blasts, shock waves, seismic shocks, shrapnel, etc. and to clean the external air contaminated with chemical, biological or radioactive substances.
The ventilation system supplies the shelter with clean air and provides an overpressure of 50-250 Pa. The kit consists of a fan (VA, air handling unit) that sucks the outside air through an explosion-proof valve with a pre-filter (ESV-VF).
In case of contaminated air, connect the NBC filter of the corrugated hose between the fan and the air flow meter. The required amount of air is adjusted on the flow meter, and the valves regulate safe supply and exhaust of air from the shelter.
If you plan to build a shelter or a room that is to provide shelter for the time of danger, you should take into account how many people this room is supposed to accommodate. Each person staying in such a room, by breathing, accelerates the consumption of clean air produced by the device for filtering the outside air. Therefore, it is very important to choose a properly efficient device for our needs.
Here is a table that will help you choose the right ventilation size.
For a protected area according to Swiss standard (minimum Swiss regulations:) ||
Calibrated air volume Filter operation |
Fresh air operation
|Standard level of security Reflected pressure / Higher levels of protection available|
Up to 15m2
40 / 80 m3 /h
Up to 25m2
75 / 150 m3 /h
Up to 50m2
150 / 300 m3 /h
|VA-300||Larger shelters|| |
300 / 600 m3 /h