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Do you need help choosing the right product for your application? Please email the details for your process to: sales@lev-co.com. Don't forget to scroll down for more products and info!
Capture at Source Extraction Arms are used to capture airborn contaminants before the contaminants have a chance to reach the workers' breathing space

Available in several different designs:
  • internally supported
  • externally supported
  • telescopic
  • mild or stainless steel construction
Lengths: Up to 45'

Diameters to suit Application: 2.5" through 8"

Typically the Extraction Arms are connected to a fixed extraction fan, Filter system or dust collector via direct mounting or a "Header Type" duct system.

Here are some questions you may want to consider when selecting an extraction arm:
  1. Is there any requirement Image (Good Looks)?
  2. What is the Budget $?
  3. Is it important for the product to be Ergonomically/easy to position?
  4. Is it important for the product to be Move into place and Stay in place (without additional process such as tightening joints)?
  5. What is the Diameter?
  6. Chemical resistivity for external components?
  7. Is there any requirement for Chemical resistivity for internal components?
  8. What is the Transport velocity to be maintained?
  9. What is the Noise level (Air noise generated as Air passes through the arm)?
  10. What is the Lbs of force required to position into place?
  11. What is the acceptable Flow rate and pressure drop?
  12. Range of motion (Does it move to where they the arm to move and will they arm stay in this position.)?
  13. Does the build up of contaminant on the internal surface of the extraction arm cause concern?
  14. Do we need to meet any codes (EG: Fire (Transport/Flammability, Explosivity, etc.)
  15. Are there any issues related to the build up of static electricity that should be mitigated?


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Portable Dust & Fume Filter Units. Quite often “Clean Air” solutions are required throughout a work place. These units can be easily moved from location to location with ease while capturing dust and fumes where needed.

Various Options in Filtering Systems Available:
  • Washable Filters
  • Cleanable Filters
  • Self-Cleaning Systems
  • Throw Away Filters
All Units equipped with fan/motor assemblies to ensure adequate extraction at all times

Some important points to consider when purchasing:
  1. How easy is the unit too move?
  2. Is it easy to use?
  3. Does it fit through small doorways and between tables, etc…?
  4. Will it stand up to your environment (Eg: is it made from Plastic or Steel?)
  5. Filter cleaning: is it easy to clean? Does the filter cleaning system really work?
  6. What will be my filter costs per year (e.g. in welding you can use how many lbs of welding wire…)
  7. Do you need unit for Maintenance or Production Application?
For more info, please see the products and associated documentation listed below.

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Per Station Dust Collectors such as these are ideal for 'Cell Based' manufacturing and work stations. Most of these solutions are based upon self-cleaning filter cleaning systems to reduce filter costs.Water based systems are also available for certain explosive and flammable applications

Some important points to consider when purchasing:
  • What is the Total Flow Rate? (How many CFM's are needed to capture the contaminants)
  • What is the exact resistance (filter and capture device losses) required for the fan to overcome?
  • Do I have enough filter media in the collector?(Air to cloth ratio)
  • Will it stand up to your environment (Eg: is it made from Plastic or Steel?)
  • Filter cleaning: Does the filter cleaning system really work in your application?
  • What will be my filter, maintenance and energy costs per year?
  • Are there any tertiary risks such as fire, explosion, etc, that I need to consider?
For more info, please see the products and associated documentation listed below.

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Centrally Ducted Dust Collectors such as these are ideal for large shops and centrally ducted applications. Most of these solutions are based upon self-cleaning filter cleaning systems to help reduce filter costs. In addition, Water based filtration systems are available for certain explosive and flammable applications

Some important points to consider when purchasing (please do your best to answer as many of these as you can):
  • What is the exact process?
  • How is the emission released into the workplace?
  • Does the contaminant have velocity when released from the process?
  • Have you thought of any specific methods of capturing the contaminant ?
  • Have you used that method of capture before? If so, did you like it or would you prefer something different.
  • Are you looking at a centrally ducted system or per workstation?
  • What is the Total Flow Rate? (Add up all the inlets that will run at once)
  • What is the exact resistance (filter and duct losses) required for the fan to overcome?
  • Do I have enough filter media (Air to cloth ratio) in the collector?
  • Will it stand up to your environment (Eg: is it made from Plastic or Steel?)
  • Filter cleaning: Does the filter cleaning system really work in your application?
  • What will be my filter, maintenance and energy costs per year?
  • Are there any tertiary risks such as fire, explosion, etc, that I need to consider?
For more info, please see the products and associated documentation listed below.

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Down Draft Tables. Sometimes the best solution for extracting welding fumes is right on the table.This is generally referred to as a Down Draft Table. The Downdraft Table serves as both a workbench and an air cleaner. A rigid grill supports the product, while an air cleaner below draws smoke and fumes down and away from the worker's breathing zone. A worker can weld, grind, and cut on the surface of the table while dust and fumes get sucked away from breathing air space Some important points to consider when purchasing:
  • What is the velocity or the air required to pull the fumes and dust downward into the table (Capture Velocity)? (Add up the CFM for all of the inlets that will run at once)
  • What is velocity at the Table surface required to achieve the appropriate Capture velocity (Face velocity)?
  • Do I have enough filter media (Air to cloth ratio) in the collector?
  • Will it stand up to the working environment (Eg: is it made from Plastic or Steel?)
  • Filter cleaning: Does the filter cleaning system really work in your application?
  • What will be my filter, maintenance and energy costs per year?
  • Are there any tertiary risks such as fire, explosion, etc, that I need to consider?
  • For more info, please see the products and associated documentation listed below.

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    Back and Side Draft Tables are similar to Down-Draft Tables. “Back Draft” and “Cross Draft” are ideal solutions when extraction methods such as self-supporting extraction arms and other such systems prove to be inappropriate for the application.The contaminated air is drawn in from the back or side panels of the work area. These units come with or without filtration systems and can also be combined to create complete enclosures for whatever the application might be Some important points to consider when purchasing:
  • What is the velocity or the air required to pull the fumes and dust horizontally into the table? (Capture Velocity: Add up the CFM for all of the inlets that will run at once)
  • What velocity at the Table surface is required to achieve the appropriate Capture Velocity? (Face velocity)
  • Do I have enough filter media in the collector? (Air to cloth ratio)
  • Will it stand up to the working environment (Eg: is it made from Plastic or Steel?)
  • Filter cleaning: Does the filter cleaning system really work in your application?
  • What will be my filter maintenance and energy costs per year?
  • Are there any tertiary risks such as fire, explosion, etc., that I need to consider?
  • For more info, please see the products and associated documentation listed below.

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    Updraft and Overhead hoods, completely or partially enclose the process or contaminant generation point. For example: A Complete Enclosure would be a sealed “box” or similar type of configuratin where only minimal openings exist and the contaminated air is sucked up and away. The enclosing hood is preferred wherever the process configuration and operation will permit. A Partial Enclosure would be an “open box” (i.e.: with the lid cut off). An inward flow of air through the enclosure opening will contain the contaminant within the enclosure and prevent its escape into the outside work environment. If complete enclosure is not feasible, partial enclosure should be used to the maximum extent possible. Here are some general design velocities when using "RECEIVING" Hoods: Please contact a Lev-co representative

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    Environmental Control Booths allow operators to work on a variety of components while assuring worker comfort and visibility within the critical area. These solutions also ensure that the "dust produced within the booth... stays in the booth..." Some important points to consider when purchasing:
  • How large does the booth have to be?
  • Is the air speed through the work zone high enough to protect the worker?
  • What is the noise level? (inside and outside the booth)
  • Will it stand up to your environment (Eg: is it made from Plastic or Steel?)
  • Filter cleaning: is it easy to clean? Does the filter cleaning system really work?
  • What will be my filter costs per year (in welding you can use lbs of welding wire…)
  • What is the filtration efficiency
  • Are there any tertiary risks such as fire, explosion, etc?
  • For more info, please see the products and associated documentation listed below.

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    Ambient Air Cleaners involve the use of large “Washable, Cleanable or Replaceable Media” filters. These units, both filter and re-circulate the air back into the work place Installation Configurations: Free Hanging "Negative Pressure" “Race Track” "Cross Dilution" Depending upon the designed air pattern, these systems "scrub" the ambient air of contaminantes and the result is a dramatic reduction of airborne pollution. These systems are best used in combination with source-collection equipment. Some important things to consider when purchasing these types of units:
  • What is the volume of the room you want to clean? (cubic dimension: L'xW'xH')
  • How many times would you like to change the air in your room? (eg: Welding=8 AC/H)
  • How much contaminant do I generate? (eg: dust, smoke, fume)
  • Where am I going to mount these units?
  • Can I use these units to create a negative pressure in my work area?
  • Do I want "throw away", "washable", "cleanable" or "self cleaning" filters?
  • Information required to estimate the annual filter costs for a welding application:
  • 1. Brand of Wire
  • 2. Diameter of Wire
  • 3. Type of Wire
  • 4. Lbs of Wire per year
  • 5. Condition of part being welded(minimal,low,medium or heavy oil content...)
  • 6. Metals being welded
  • For more information, please see the products and information listed below:

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    Ducted Air Cleaners are used in a variety of applications where the filter selection often requires a specific configuration. With these collectors you can select a variety of particulate, liquid or gas phase filters such as “HEPA” filters, “Mist Agglomerators” and “Gas Adsorbers” respectively. These systems are available with or without pre-engineered and installed fan packages. Here are some general design velocities when using "CAPTURE" Hoods: Smoke (e.g. Welding):
  • Capture Velocity 100 FPM
  • Transport Velocity 3000 FPM
  • Minimun Face Velocity 2355 FPM
  • Dust (e.g. Grinding):
  • Capture Velocity 500 FPM
  • Transport Velocity 4000 FPM
  • Minimun Face Velocity 4000 FPM
  • Gas (e.g. V.O.C.'s):
  • Capture Velocity 50 FPM
  • Transport Velocity 2000 FPM
  • Minimun Face Velocity 785 FPM
  • Mist:
  • Capture Velocity 100 FPM
  • Transport Velocity 2250 FPM
  • Minimum Face Velocity 1766 FPM

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    Mist Collectors are for a variety of mist producing applications such as: CNC Machining and Coldheading Applications. These filters are "SELF-DRAINING" and it is important that the amount of dust being captured by these systems does not exceed more than 5% of the total extracted pollutant. If the dust quantity is kept to a minimum, filter life can be expected between 1 and 5 years depending on the application and runtime. Here are some general design velocities when using "CAPTURE" Hoods: Mist:
  • Capture Velocity 100 FPM
  • Transport Velocity 2250 FPM
  • Minimum Face Velocity 1766 FPM
  • Here are some general design velocities when using "ENCLOSING" Hoods: Mist CNC:
  • Minimum Face Velocity 75 FPM
  • Transport Velocity 2250 FPM

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    Hi-Vac capture and filtration of welding fume is a highly effective method of capturing welding fumes directly at source. This solution involves the use of CAS welding gun (sold by many welding equipment resellers) or by the use of one of our tool attachments. The fumes are extracted directly on the welding gun and filtered by a remotely located Hi-Vac filtration system

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    Fans for air make up and exhaust are quite often a difficult product to find when designing a simple ducted local exhaust system. Here we offer a variety of "LEV" (Local Exhaust & Ventilation) fans specifically designed to meet the demands of such systems. These Fans are able to handle specific applications such as: - Corrosive fumes - Abrasive dusts - Proper flow and static pressure for a particular application Please feel free to contact one of our System Design Technicians for help in selecting the right fan for your application.

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    The best way to protect mechanics and garage employees from harmful gases released from automotive vehicles such as cars & trucks is CAPTURE AT SOURCE. This means directly at the tailpipe. This process involves 3 steps: 1 - Capture of the gases at source through suction nozzles 2 - Transporting the gases through exhaust hoses to an exhaust fan 3 - Transport the gases to atmosphere. Below is a list of the information that needs to be gathered prior to selecting the appropriate VEHICLE EXHAUST ventilation system: 1 – Max Engine HP 2 – Max RPM engines to be run at: 3 – Engine being run A - under load? or B - at idle? 4 – Diameter of smallest and largest tailpipes? 5 – Configuration of tailpipes? (EG: are they exposed, behind a grill, overhead stack, under carriage, etc…) 6 – Voltage and amperage available: 7 – Fixed or portable system:

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    When diesel engines are started inside a building, these toxic air contaminants are emitted into the breathing area. It is well known that continued exposure to these contaminants has been linked to cancer and other serious health disorders.

    Fire and EMS facilities, garages, maintenance shops, or anywhere that trucks, buses, heavy equipment, or fleets of vehicles are operated are especially vulnerable to these toxic pollutants.

    The only proven method requires a "source capture" system, however, a system that pulls 100 percent of the exhaust emissions outside the building, through sealed hose or piping.

    Lev-co offers a complete line of Portable Vehicle Exhaust solutions for all makes and models of engines and equipment.

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    Lev-Co offers a wide variety of lightweight, flexible, abrasive resistant, heat tolerant, innovative technical hoses to provide solutions for a wide range of industrial & Automotive applications. Here are some general design velocities when using "CAPTURE" Hoods: Smoke (e.g. Welding):
  • Capture Velocity 100 FPM
  • Transport Velocity 3000 FPM
  • Minimun Face velocity 2355 FPM Dust (e.g. Grinding):
  • Capture Velocity 500 FPM
  • Transport Velocity 4000 FPM
  • Minimun Face Velocity 4000 FPM Gas (e.g. V.O.C.'s):
  • Capture Velocity 50 FPM
  • Transport Velocity 2000 FPM
  • Minimun Face Velocity 785 FPM Mist:
  • Capture Velocity 100 FPM
  • Transport Velocity 2250 FPM
  • Minimun Face Velocity 1766 FPM FOR MORE SUPPORT IN SELECTING THE RIGHT HOSE pls EMAIL us with details on your application at: sales@lev-co.com

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