Construction & Demolition

Construction & Demolition

OverviewEquipmentSupportFAQ - Construction & Demolition

Demolition & Construction Projects

OmniAire 1200V Air Scrubber

OmniAire 1200V Air Scrubber

Demolition and construction projects release a combination of dust and bio-contaminants which are irritating and potentially harmful. The dust generated during these projects must be contained and captured. Depending on the risk assessment, HEPA air scrubbers can be used to purify air at a work area or negative pressure containment. HEPA negative air machines can be used to prevent the spread of dust and other contaminates to the outside area. The air filtration equipment, pressure monitors, and purifiers for bio-contaminants are briefly described below with interactive links to more detailed information.

Air Scrubbers and Negative Air Machines

OmniAire HEPA air filtration machines are used as air scrubbers to purify air or as negative air machines to create negative pressure and required air changes (ACH) inside the contained work area. The negative pressure containment is an effective and proven method of capturing fine dust particles and other contaminants released during demolition and construction projects. Our OmniAire air filtration machines, with airflows from 50 to 18000 CFM, are used daily at countless construction, demolition, abatement and restoration projects. To assist you with your airflow requirements for your next project, see our Air Flow Calculator.


600 Nitro Yellow 3

OmniAir Nitro 600 with yellow housing

  • Variable speed control – OmniAire machines are available with airflows from 50 to 18000 cfm. Many models offer variable speed control with infinite airflow settings.
  • Economical to operate – 12” deep HEPA 99.97%, 0.3 micron filters to provide long service before change of HEPA is required. Optional HEPA 99.99%, 0.3 micron individually tested and certified filters available.
  • Safe to operate – meets UL, CSA and OSHA safety standards required on governmental projects, in healthcare facilities and many areas where safety of employees is of concern. A number of models meet CE/IEC regulations and requirements for export.
  • Built to provide long and reliable service – OmniAire machines are built to perform in tough construction environments, easy to maintain and to meet DOP efficiency testing at your job site.


  • Creates negative pressure and safe environment at your work area
  • Reduces potential liability – prevents spreading of contaminants
  • Protects your workers – improved job performance
  • For assistance in choosing the correct OmniAire HEPA negative air machine for your asbestos abatement project use our handy Airflow Calculator.
Watchman and OmniGuard 4 pressure monitors

Watchman and OmniGuard 4 pressure monitors

Differential Pressure Monitors

When using negative pressure containment, it is important to monitor the pressure inside the containment in reference to the outside area. The Watchman DP monitor with alarm system and the Omniguard 4 recorder are the most reliable low pressure measuring instruments for the demolition and abatement industry. The negative pressure required at a contained abatement work area is usually at 0.020”WC, which is a very small DP and challenging to measure. The Watchman differential pressure monitor and Omniguard 4 pressure recorder provide accurate monitoring and alarming functions and are easy to set up with a simple push-button calibration.

Air Purifiers for Mold, VOCs and odor

PEROx Air Purifier

PEROx Air Purifier

To control mold spores, odor, VOCS, and numerous other bio-contaminants during demolition and the final cleanup, the PEROx air purifier is your safest and the best tool. It generates Ionized-Hydro-Peroxide which rapidly destroys contaminants in surrounding air and on hard surfaces. Hydro-Peroxides are generated from oxygen and air humidity without adding any chemicals. Unused oxides convert back to H2O and O2.

PEROx Purifiers destroy

  • Mold and mildew
  • Chemical fumes
  • Paint odors
  • Cleaning-chemical odors
  • Pet odors
  • Sewer odors
  • Odor and bacteria from decaying organic matter
  • Volatile organic compounds (VOCs)
  • Tobacco odors
  • Many other hazardous bio-contaminants
Air Filtration Systems
Airflow: 200-600 cfm
Weight: 36 lbs
Airflow: 300 CFM to 1000 CFM based on speed settings and filter selection
Weight: 96 lbs/43.5 kg
negative air machine 2000V
Airflow: 1900 cfm*
Weight: 117 lbs
Airflow: 1000/2000 cfm
Weight: 147 lbs
Airflow: 1000/2000 cfm
Weight: 147 lbs
OmniAire 18000, OA18000, 18000 CFM Air Filtration System
Airflow: 18000 cfm
Weight: Blower Unit: 900 lbs
Weight: Filter Cabinet: 200 lbs (with filters)

See all our Air Filtration Systems …

Support for Construction and Demolition Projects

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 Air Filtration & Dust Collectors

Managing Dust during Construction and Demolition Projects

Optional Bag Filter and Housing

Optional Bag Filter and Housing

Many activities during construction, renovation and demolition projects release large amounts of dust which could be threatening to workers health and impact the successful completion of the project.

OmniAire air filtration machines can be equipped with HEPA filters or with bag filters to remove construction dust from the air at work place. The Bag Filter with a housing adapter can be quickly installed in place of HEPA filter, creating a portable dust collection system. Our bag filters with MERV14 efficiency, are very economical filters for collecting and holding large amounts of dust and debris which would quickly clog an expensive HEPA filter.


  • Demolition Work
  • Sheetrock Finishing
  • Sanding and Grinding
  • Woodworking
  • Painting/Finishing
  • Concrete Sawing
OmniAir 2200C

OmniAir 2200C

OmniAire 18000

OmniAire 18000

Flexible hoses can be attached to the OmniAire dust collector to collect dust from the point of creation and discharge clean air to any area needed. Improving the air quality in the workplace may increase employee productivity and decrease allergic reactions to airborne pollutants.

Dust collector bags and housings are available for the following machines:

Using HEPA AIr Scrubbers

Choosing HEPA Air Scrubbers for Restoration Projects

OmniAire Air Filtration Systems are used as air scrubbers to purify air or negative air machines on all types of demolition, construction and renovation projects. The OmniAire air filtration machines are available with airflows from 50 to 18000 CFM and are equipped with 99.97% HEPA filter. For a control of construction dust, some larger machines are available with MERV14 bag filters in place of HEPA.. OmniAire machines have a reputation for quality construction, reliable service and are often used on projects where DOP efficiency or equivalent tests are required before the equipment is used on the project.

OmniAire HEPA negative air machines are sold throughout the U.S., Canada and are exported worldwide. To assure our product electrical safety, machines are tested by TUV Laboratories to comply with UL and CSA/IEC safety requirements.


  • Variable Speed Control – infinite air flow adjustments for greater versatility
  • Great Portability – large, non marking casters, compact size, light weight
  • True HEPA Filters – 99.97% and 99.99% @ 0.3 micron efficiency, wood or metal frame
  • Economical to Operate – uses standard size HEPA filters, 12” deep
  • Quality Metal Cabinets – smooth surface for easy cleaning, easy maintenance
  • Safe to Operate – tested to comply with UL and CSA electrical standards and OSHA

Optional Accessories for Restoration

Equipment Size

As projects vary in size, accessibility and types of contaminants, the size of the equipment has to be considered. OmniAire HEPA negative air machines prove airflows from 50 to 18000 CFM, 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.

Need Custom 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.

Air Filtration Machine vs. Neg Air vs. Air Scrubber

In general, these names are just a marketing terminology. When Air Filtration Machine is used to create negative pressure in containment, it is often called Neg Air machine. When used for recirculation and purification of air in open area, it could be called Air Scrubber or Air Filtration Machine. OmniAire machines are built to provide a high quality service in any environment and application. Your specific requirements regarding airflow, type of project, accessibility are the important factors in choosing right equipment for you. See our Comparison of OmniAire HEPA Air filtration machines.


For the safety of the users and the acceptance of the equipment on governmental, hospital and many other projects, equipment has to meet the requirements of the applicable electrical codes. To verify the UL & CSA/IEC safety compliance and listing, each machine has an identification label with name of NRTL which performed the test and the manufacturer file number.


Use of negative pressure containment with HEPA air filtration prevents spread of asbestos fibers, mold and other contaminates to the outside of contained work area, All exhausted air is purified by HEPA negative air machine to create negative pressure and required air changes (ACH) inside the contained work area. In order to create a negative pressure environment more air must be exhausted from the space then leaking in. . See our Air Flow Calculator to assist you with your airflow requirements.


Our Air Flow Calculator will provide a quick answer on required cfm and type of machines. Just enter the size of your work area and the number of air changes per hour (ACH). Six or more ACH are recommended for construction and renovation projects.

How often we need to be changing primary/secondary and HEPA filters?

The frequency of changing filters depends on:

  • Amount and size of airborne dust particulates
  • Airflow requirements
  • High static pressure drop across the filters (see User Manual)
  • Risk of cross contamination from one project to another

Dustlock primary/secondary filter should be replaced when its orange, downstream side shows signs of discoloring by dust. Our dual density poly media captures particulates in full depth of the filter media rather than on the surface, as pleated filters do. The m edia is treated with tactifier to prevent release of captured dust and antimicrobial additive to prevent growth of virus and bacteria. Frequent replacement will help to maintain high airflow and protect the more expensive HEPA filter.

The HEPA filters should be replaced when the airflow decreases below your requirements or when pressure (“WC) across the filter increases to recommended replacement pressure – See User Manual. Some of our OmniAire air filtration machines are equipped with a simple Filter Change light to indicate that filters should be checked or replaced.

HEPA filters become even more efficient when loaded with particulate matter, but the airflow resistance increases and the airflow could be reduced to zero. Average HEPA filter life is 800 t0 1000 operation hours.


High-efficiency particulate air or HEPA is a type of air filter. Filters meeting the HEPA standard have many applications, including use in medical facilities, abatement of asbestos, mold and lead, restoration after water damage and many other. The filter must satisfy certain standards of efficiency such as those set by the United States Department of Energy (DOE). To qualify as HEPA by US government standards, an air filter must remove 99.97% of all particles greater than 0.3 micrometer from the air that passes thru the filter. Click HEPA filters for more…

Our large OmniAire air filtration machines can be equipped with HEPA filters or with bag filter to remove construction dust from the air at work place. The Bag Filter with a housing adapter can be quickly installed in place of HEPA filter, creating a portable dust collection system. Our bag filters with MERV14 efficiency are very economical filters for collecting and holding large amounts of dust and debris which would quickly clog an expensive HEPA filter.

The odor and VOCs can be removed from air with OdorGuard600 and Vapor Trap carbon web filter added to OmniAire machine. For odors associated with water damage, sewer flood, fires and mold, use our PEROx air purifier to destroy safely the source of odor without using chemicals. PEROx unit contains Ionized-Hydro–peroxide generator which is very effective in destroying all types of VOCs, chemical fumes, decay odors, mold spores, virus and bacteria. This purification process is safe for workers and inhabitants.