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Defining Filter Terms

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We’ve compiled this glossary to help you understand the different industry terms and acronyms used across our website and literature.

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Air Changes: a calculation of how many times per hour the entire volume of air in a given space is replaced with supply and/or recirculated air. ACB units push air from outside into the space being conditioned.

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Configurations: the relative disposition or arrangement of the parts or elements that make up something as a whole
ACB Implementation: We configure different models for different purposes.  As an option, ACBs can also be adapted to collect the particles separated out if they have a value, such as a dusty product that escapes from a conveyor or bag filler.


Constant Airflow: Constant airflow is maintained due to the lack of a filter media or canister restricting airflow, particularly as it fills with trapped debris and clogs.


Constant Cost of Electricity:  The fan motor uses a constant amount of electricity since it never needs to push through a dirty filter or canister.

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Exhaust: air being removed from any space, appliance, or piece of equipment and conveyed directly to the atmosphere by means of openings or ducts.
ACB Implementation: ACB units exhaust air out of a space without the dirt inside escaping into the surrounding atmosphere by simply ejecting it back into the space or by sending it to a collection chamber of some sort. By creating a negative pressure (slight partial vacuum) in the space, they confine dust and other particles within the space so that they do not spread to other areas of the building.  They also ventilate the space by pulling in air either through vents or through leaks around doors and other openings.

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Filter: systems or elements used to remove substances such as dust or dirt, or electronic signals, etc., as they pass through filtering media or devices
ACB Implementation: Our system was developed to pressurize the unwanted matter in the dirty air to provide cleaning without the need for any filter media. We refer to the term Filter as the process of holding back or separating out elements and by modifying the appearance of something.


Feed Air:
ACB Implementation: ACBs can be individually adapted for the needs of a specific application or manufacturer to provide feed air in specific applications such as a bank of air compressors in a dirty environment or combustion chamber in a furnace or oven.  These units can stand alone or be installed in a duct.


Filtration: the process in which solid particles in a liquid or gaseous fluid are removed using a filter medium; the process of filtering
ACB Implementation: ACBs are a type of filter since they remove particles suspended in air and other gases.  However, they function differently and offer many advantages over media-based filters because they use no filter media and move/blow air.
Air Cleaning BlowersTM are more compact, easier, and less expensive to install, operate and maintain. By eliminating the filter media aspect, you refrain from labor, energy losses, clogging issues and other costs associated.

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HVAC: [Heating, Ventilation, and Air Conditioning] the technology of indoor and vehicular environmental comfort. Its goal is to provide thermal comfort and acceptable indoor air quality.

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Installation: the process of installing new system or equipment for use. We have designed ACBs to be easy to install similar to that of a kitchen fan.  
ACB Implementation:
    1. We make a hold in the wall the diameter of the discharge hole of the ACB (if desired, add a duct inside the wall and/or extending from the wall).
    2. We fasten the ACB’s integral mounting plate to the wall with bolts and connect the wiring.  On the far side of the wall from the ACB, mount whatever kind of discharge grille or duct that you want.  That’s it!

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Pre-Cleaning Air:  These units serve to greatly reduce the costs of providing clean air by pulling most of the mass of particles out of the airflow before they reach the expensive HEPA, activated carbon, and other special-application post-filters downstream.


Purging: the act of getting rid of something unwanted or harmful
Pressurization:  to confine the contents of under a pressure greater than that of the outside atmosphere
ACB Implementation: ACBs have additional controls to enable them to maintain a steady flow of air to provide a steady air pressure in the conditioned space and/or to greatly increase the flow temporarily into the space to purge it of unwanted gases or other contaminants.


Predictability: the degree to which a correct prediction or forecast of a system’s state can be made, either qualitatively or quantitatively
ACB Implementation: Without the clogging that always occurs in filter media, air-cleaning blowers will provide constant performance that can be relied on.  Predictability makes the systems easier to design and size.

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Spot-Cleaning Air: Spot cleaning air blowers stand-alone and serve to blow clean air to applications in small portions of a large facility or even outdoors. Typical applications include blowing clean air over workstations, individual people, or pieces of equipment.

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Ventilation: the process by which clean air (normally outdoor air) is intentionally provided to a space and stale/dirty air is removed.