Disaster & Epidemic Response

natural disaster and epidemic

OverviewEquipmentSupportFAQ - Natural Disaster & Epidemic Response

Disaster & Epidemic Response Equipment

Clean Air for Emergency Shelters, Mobile Hospitals and Public Facilities

Anywhere there is a large gathering of people, respiratory infections can be acquired due to exposure to airborne pathogenic microorganisms. To help prevent the spread of diseases the Center for Disease Control (CDC) recommends that potential problem areas be isolated and the air purified by portable, HEPA air filtration equipment. OmniAire and OmniAire PAC portable HEPA air filtration machines provide a clean air supply necessary to protect the public in gathering areas such as schools, emergency shelters or temporary healthcare facilities. To comply with CDC guidelines to prevent the spread of disease and contamination of sensitive areas, OmniAire HEPA air filtration machines are commonly used to:

    • Create a negative air pressure in isolation containment
    • Supply purified air for required air changes (ACH)
    • Sanitize airflow in operating and patient’s rooms
    • Purify air in waiting rooms and public areas
    • Prevent contamination in compounding pharmacies

Preventing the spread of infectious diseases

Studies show that the combination of a negative pressure containment with HEPA air filtration and UV germicidal irradiation (UVGI) is the most effective method to capture and destroy bio-contaminants (bacteria and viruses) that spread diseases such as pandemic flu, avian flu, tuberculosis, aspergillosis, ebola fever, marburg hemorrhagic fever, lassa fever, and other biological threats.

Portable air purification equipment such as the OmniAire PAC utilizes UVGI lights and an optional PEROx hydro-peroxide purifier to kill and deactivate airborne pathogens and bio-contaminants. When required, an optional module containing hydro-peroxide purifiers will more thoroughly sanitize and decontaminate the air and surrounding surfaces.

These units are best used in isolation/operating rooms, healthcare facilities,

compounding pharmacies and other highly sensitive areas. The HEPA purified, filtered air can be safely exhausted into an occupied area or ducted to the outside.

Both the OmniAire and OmniAire PAC models come in several air flow capacities. To assist you in finding the proper CFM requirements and selection of equipment, please go to our Air Flow Calculator .

OmniAire Equipment for Disaster & Epidemic Response

See all of our Air Filtration Systems …

See our Bio-Contaminant Purifiers …

See our Water Filtration System


Support for Response to Natural Disasters & Epidemics

Achieving the best results with our equipment in specific industries often includes understanding the features of our machines and/or the accessories that will best assist you in your job.  Here we provide a few observations and elaborations that may help you in your research.

Using HEPA Air Filtration

Choosing the right Equipment for Natural Disasters & Epidemics

OmniAire HEPA air filtration/air scrubbers are used in medical, public and emergency facilities to purify air and help prevent the spread of bio-contaminants or airborne diseases. During a disaster response, mobile tent hospitals, isolation rooms, schools, airports and other public and emergency facilities need a reliable source of clean or purified air . OmniAire and OmniAire PAC machines provide HEPA and HEPA/UVGI purified air, are reliable and built to pass DOP efficiency tests (or equivalent) which is often required before being placed in service. Tested by TUV Laboratories to comply with UL and CSA/IEC safety requirements, OmniAire HEPA air filtration equipment is sold worldwide with a reputation for quality construction and reliable performance.


  • Variable Speed Control
  • Portability – large casters, compact size, light weight . OmniAire PAC comes with 10” wheels.
  • HEPA Filters – 99.97% and 99.99% @0.3 micron efficiency( wood , metal , or plastic frames
  • Economical to Operate – uses standard size HEPA filters – Easy to set up, transport and operate
  • Quality Metal Cabinets – smooth surface for easy cleaning and maintenance.
  • Safe to Operate – TUV tested to comply with UL and CSA/IEC and OSHA requirements. Available in 115 or 230 VAC

Optional Accessories

Equipment Size

OmniAire HEPA negative air machines can provide airflows from 50 to 18000 cfm and come in many sizes and configurations. To accommodate the variations of the required air flow, our variable speed controller is standard on most of our equipment to maximize versatility of each machine.

Need Custom Disaster & Epidemic Response Equipment?

If our specification sheets do not match your requirements, please contact us. We have a number of custom accessories such as higher efficiency filters, audible alarms, hour meters and other safety items. Most of our machines are also available with 230V 50/60Hz motors.

FAQ – OmniAire PAC Used for Isolation

What is special about OmniAire PAC HEPA Air Purifiers?
OmniAire PAC are design for use in medical environment and labs, where removal of aerosolized sub-micron particulate and pathogens is critical. HEPA air purifiers used in healthcare facilities provide continuous air purification and required air changes per hour (ACH). Our PAC machines are used to create isolation rooms with negative pressure (AII) or positive pressure (PE). They could be also connected to anteroom for operating rooms or portable isolation enclosures. OmniAire PAC air purifiers use certified HEPA filter 99.99% @0.3 micron efficiency and UV-C germicidal lights (UVGI) to comply and exceed 2003 CDC Guidelines for Environmental Infection Control in Health-Care Facilities.
Where should we locate PAC machine inside the room?
PAC machine should be positioned with intake side facing the source of contamination and to create a flow of contaminated air away from the patient. When used inside an isolation room, place the machine far away from the door to pull any contaminants away from the corridor and public spaces. Purified air can be exhausted inside the room.
Could we use OmniAire PAC machines to create patients isolation rooms?

Negative Pressure AII Rooms

To create negative pressure inside the room in reference to adjacent corridors, more air has to be exhausted then what leaks inside through suspended ceiling and under the doors. PAC machine with our flex hose and adapter can exhaust purified air to outside the building or to the corridors when permitted by state regulations.

Usual requirements for AII rooms:

  • Negative pressure of 0.01 to 0.03”WC in reference to corridors
  • Air flow rate of 12 ACH or more
  • Air flow volume differential of 125 cfm or more of supply versus exiting air

Positive pressure environment for high risk, immune compromised patients

Our PAC machine with flex hose adapter can pull in and purify air from corridor area to create positive pressure inside the room and to generate required air changes. Locate PAC machine closer to door to push air out into the corridors and public spaces to prevent contamination from outside areas to seep in.

Usual requirements for PE rooms:

  • Positive pressure of 0.01 to 0.03”WC in reference to corridors
  • 12 ACH or more air flow rate
  • Air flow volume differential of 125 cfm or more of supply versus exiting air
How to monitor the differential pressure?
The room pressure for AII or PE is 0.01 to 0.03”WC in reference to corridors. This is a very low pressure range and requires high accuracy instrument. We have available OmniGuard 4 pressure recorder or the Watchman pressure monitor.
How We Benefit From Using PAC machines for Patient Room Cleanup?
Turnaround Time – We are concerned with providing the highest levels of protection for hospital workers and patients. After hospital cleaning staff carry out infectious disease control cleanup procedures (the removal of all physical items) in the infected areas, the room can then be put back in service faster if the air is purified and sterilized using an OmniAire PAC with PEROx air purifier module. This results in minimal room shut down and disruption which is a major concern for all hospital administrations.
Which OmniAire PAC model would be the best for our facility?
OmniAire PAC air purifiers are available with air flow capacities 200 to 1100 and 300 to 1850 cfm. Both models are capable to provide a wide range of air flow set by variable speed controller to meet your 12 ACH requirements. These portable machines with casters or larger set of wheels are easy to move from room to room as needed.
How many PAC machines it would require to have 12 ACH flow rate?
CDC guidelines for isolation rooms requires 12 ACH air flow rate or more in isolation rooms (PE or AII) .After calculating cubic feet of the room (length x width x height) multiplied by 12 (ACH) calculates minimum required airflow of cubic feet per hour. This divided by 60 (minutes gives you required air flow of cubic feet per minute (cfm) Our Airflow Calculator will quickly assists you with this calculation end the cfm required..
Choosing PAC machine
If this airflow calculation is for example up to 800 cfm, choose equipment which is rated to deliver about 1600 cfm. This takes in consideration leakage of air into the room, machine running at less then full speed and gradual loading of filters with dust. Larger safety margin is better. For a requirement of 400 to 600 cfm, the OmniAire 1200PAC with 1100 cfm maximum airflow would be right size of the machine… When switching patients in a room, how long should we run the PAC HEPA system between the patients? When changing patients in a room, it is recommended by CDC to run our PAC machine with at least 99.97% HEPA for 30- 40 minutes at rate of 12 ACH per hour. Adding additional time or higher air flow adds safety. Adding PEROx Air Porifier Modole with Hydro-Peroxide generator would shorten your turnover time and increase safety for patients and the nurses.
Are all HEPA filters the same quality?
Only individually tested and certified HEPA filters should be used in critical medical applications. All HEPA filters used in OmniAire PAC machines are individually tested and certified for 99.99% efficiency at 0.3 micron, exceeding CDC recommendations.
How often should we change primary and HEPA filter?
It depends on the environment, type of dust and other contaminants. In hospital environment, the primary pleated filter is usually replaced every two months when machine is used or when put in storage for extended time. HEPA filters are usually changed every 12 to 24 months, depending on the environment. Pressure gauge on the PAC machine provides good indication of filters loading . Consult Operators Manual for recommended filters changes based on pressure readings.
How UV-C germicidal lights help to control virus and bacteria?
The CDC recommends UV-C germicidal lights for destroying viruses such as Tuberculosis. UV-C wavelength destroy bio-contaminants by penetrating the cell’s membrane destroying the cell’s DNA HEPA filter which is downstream from the UV light, captures all live and dead virus cells and the UV-C germicidal lights continuously irradiate the HEPA surface provide additional safety against biological contaminants.
How long the UVGI lights last?
UVGI lights life span is measured in hours they operate. All UV lights slowly degrade in their power output. Our UVGI lights should be replaced after 15,000 hours, which is close to 2 years of nonstop operation and the lights have only 75% of their initial intensity.
How PEROx Air Purifier module works?
PEROx purification process utilizes Ionized-Hydro-Peroxides™, friendly oxidizer plasma, made from oxygen and humidity. Hydro-peroxides rapidly destroy bacteria, virus, VOCs and odors passing thru our unit and continue to seek contaminants in surrounding air and on all the surfaces. The lifespan of these oxides is about 15 minutes after which the unused oxides convert back to H2O and O2. and is safe for a human exposure. This powerful and safe purification process can be added to our portable HEPA air scrubbers when needed. See more on PEROx module and how effective is Hydro-Peroxide on MRSA, Bird Flu and similar dangerous virus and bacteria.