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Larger Air Filtration Systems

Bomb Shelters

                                        Part number:   FAH 100/50
                                   Airflow:   100 CMH fresh/50 CMH filtered

                                                       Includes:

                             Blast valve with pre-filter, ESVF 103, NBC-Filter
                             HF 50 C, Blower LH 100/50 Overpressure
                             100/50 Blast Valve A 103

Part number:   FAH 180/90
                                      Airflow:   180 CMH fresh/90 CMH filtered

                                                        Includes:
                             Blast valve with pre-filter, ESVF 183, NBC-Filter
                             HF 90 C,Blower LH 180/90,
                             Overpressure Blast Valve A 203

Part number:   FAH 480/180
                                    Airflow:    480 CMH fresh/180 CMH filtered

                                                          Includes:

                              Blast valve with pre-filter, ESVF 483, NBC-Filter
                      Filter   HF 180 E,Blower LH 480/180, Overpressure
                      Overpressure    Blast Valve A 483

Part number:    FAH 800/300
                                    Airflow:    800 CMH fresh/300 CMH filtered

                                                          Includes:

                              Blast valve with pre-filter, ESVF 803, NBC-Filter
                              HF 300 E, Blower LH 800/300, Overpressure
                              Blast Valve A 803

Part number: FAH 1600/600
                                     Airflow: 1600 CMH fresh/600 CMH filtered

                                                             Includes:

                                               Blast valve with pre-filter ESVF 1603,
                                               NBC-Filter HF 600 C, Blower LH
                                               Blast Valve A 803

                                               1600/600,2x Overpressure

Please note:

* Airflow ratings above are in cubic meters per hour (CMH)

* Prices above are in US dollars, shipped to US addresses -
please contact Earthlog for quotations.

* Specifications are subject to change without notice

* There are other models available, both smaller and larger than shown above -
please contact Earthlog if you have any questions or need a
custom filter installation
* See Earthlog's bomb Shelters/Safe Room's terms and policies for more information.

NBC Filters
A nuclear, biological, and chemical air filtration system is installed inside a
protected space like a bomb shelter or safe room.

It draws air through an inlet pipe and forces it through a filter bank consisting of a pre-filter,
a HEPA filter, and a carbon gas adsorber.

Then the air is blown into the protected space at a higher pressure than the outside air.

This creates positive pressure (overpressure) in the protected space so that all air is
flowing outward.

This overpressure prevents any airborne toxins from entering the protected space.