Earthlog Equity Group 4Survival ®
About  4Survival  a Subsidiary of Earthlog Equity Group ®
Welcome to our web site Earthlog Equity Group 4Survival ®
and thank you for taking the time to learn more about our firm.

Since 1989, we at Earthlog Equity Group ® have been selling Earth
Sheltered Homes, Log Homes and Building materials.

Strong Pre-engineered

The Shelter Systems are constructed  pre-engineered, providing you the
peace of mind of knowing that your shelter will protect you no matter
what.

The Shelter Systems uses a unique, patented technique to ensure that each
shelter can withstand a three-bar blast.

Innovative Construction using the following components :
click any picture to enlarge .
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                                           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




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                                              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





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                                              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




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                                              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




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                                                     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   


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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.

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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.
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Air Filtration Filters