Collective Protection (ColPro) for Buildings
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Cost-effective solutions for rapidly protecting critical facilities and infrastructure.
New World is a leader in the design, installation and testing of positive-pressure collective protection systems for buildings. ColPro systems remove airborne chemical, biological, radiological, and nuclear (CBRN) contaminants and other toxic compounds from the air, allowing critical missions to continue without the need for protective masks or suits.
We offer a complete range of products and services for building ColPro. Our experience has taught us how to design and integrate ColPro systems for cost savings and operational effectiveness. As the provider of ColPro solutions under the Guardian Installation Protection Program (IPP), New World has gained substantial experience protecting both military and commercial buildings.
Collective protection is an air purification and pressurization system that is often integrated with the building’s ventilation system. ColPro works by filtering outside air drawn in by the ventilation system and pressurizing that air to create a toxic-free area (or zone). Movement into and out of the pressurized zone requires use of air locks to ensure that pressure is maintained at desired levels.
ColPro systems for buildings can vary as much as the buildings themselves. For new construction, we often work with architects to develop cost-effective designs that are tightly integrated with the planned HVAC system. For buildings that are already built, we perform site surveys to ascertain the best way to provide CBR collective protection at an acceptable price point.
To meet the demand for "plug-and-play" type protection, New World has developed the AirePod™ family of packaged air filtration systems that can be easily connected to the intake of the existing building for purification of intake air.

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New World offers complete ColPro services from concept design through in-service support:
- Definition of zone boundaries and air lock locations to support operational needs
- Sizing and arrangement of CBR Filter Systems to meet air flow requirements
- Analysis of flow uniformity and pressure drop through CBR Filter Systems
- Determination of equipment requirements for flow control and pressure monitoring
- Equipment installation and testing support through our Field Services team
- Filter system leak testing (aerosol and gas) to ASME N510
- Development of technical reports, test plans, and operation and maintenance manuals
- Sale of replacement parts, including filters and gaskets, from our in-house inventory
- In-service engineering support throughout the life-cycle

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We sell and service CBR filter systems, filters, and monitoring equipment for military and homeland security applications. These applications typically include mission critical control rooms, call centers, and other operational spaces that must remain occupied during or after a CBRN event.
The illustrations below show two methods of creating a building ColPro system. The first illustration shows an integrated CBR filter system located in or near the mechanical room. The second illustration shows a modular approach in which the CBR filter system is packaged as a stand-alone unit that can be delivered and deployed on short notice or for temporary events.
ColPro equipment for full-time or on-demand protection
Modular CBR filter system for rapid protection and deployment
New World offers ColPro products and services to select foreign customers, and is experienced with the legal transfer of ColPro technology using Technical Assistance Agreements (TAAs) and export license documents.
We are committed to supporting our ColPro systems as they are deployed throughout the world, and stock a variety of service parts for delivery worldwide.
1. What pressure (overpressure) level is needed for building ColPro?
ColPro zones - or safe rooms - are often maintained at positive pressure relative to the outside or adjacent spaces. This overpressure ensures that air will always flow from the zone through any leak paths that are not sealed. Overpressure levels vary according to many factors, including local weather, building attributes, and other requirements that govern the project. New World can help you specify or design a ColPro system to meet your needs.2. What are air locks and how are they used?
Air locks are vestibules that allow safe ingress to and egress from pressurized ColPro zones. Air locks have two doors that must be opened one-at-a-time to maintain positive pressure within the protected zone. Air locks often feature an air purge to flush airborne contaminants that may enter when the outside door is opened. New World can help with the design and implementation of air locks and purge controls.3. Do you offer CBR filter installation and testing services?
Yes. New World’s Field Service Team is available to perform both CBR filter installation and in-situ leak tests based on the requirements of ASME N510. We have the equipment and trained personnel to conduct both aerosol and gas leak tests on nearly all radial-flow filter systems, including systems installed by the U.S. Army, U.S. Navy, and the U.S. Army Corps of Engineers. We can also balance ventilation systems to design flow rates and conduct pressurization tests.

