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Step 1 – Determine the AER – Air Exchange Rate from Table 1 that best fits your application needs.

Step 2 – Determine the total cubic feet of your plant work area

               Total cubic feet = L X W X H (maximum height 20’)

Where:

L =  length of your workspace (feet)

W = width of your workspace (feet)

H= height of your ceiling in the workspace (feet)

Note – we  use dimensions only to 20 feet as smoke, dust and fumes will stratify well below this height.

               Example: 24 ft ceiling height—20 ft

Step 3 - Divide the total cubic feet by the AER determined in Step 1.

Step 4 - Divide this total by the CFM of the unit you prefer to use.

               T-3000 is 3000 CFM

               T-3500 is 3500 CFM

               T-4500 is 4500 CFM

               T-6000 is 6000 CFM

               T-7500 is 7500 CFM

 

Example:

 Workspace is 100’ long X 60’ wide X 18’ tall

 Total cubic feet is: 100 X 60 X 18 = 108,000 cubic feet

 

 Welding application

 Medium use 5 as the AER (air exchange rate)

 (from Table 1)   108,000/ 5 = 21,600

 

 Assume using a T-3500 (3500 CFM unit)

 21,600/3500 =  6.17 or 6 units to handle the application.

 

Step 5 – Determine best location or placement for units.

 

Our qualified staff is always available to help you determine CFM requirement, placement and then final selection of the units that will provide you the best “cost of ownership” in regards to  electrical consumption and filter service costs. 

Contact: Jeff Zvolanek at (877) 624-3247

 

*Source capture may be required to meet OSHA, PEL or TWA requirements.   General guidelines only, consult factory for specific details.

 

  

Application Guidelines
 General Ambient Filtration

Application Air Exchange
Rate
(Minutes)
Welding 4 - 6
Grinding 6
Plasma Cutting -
collection over a wet table
6 - 8
Oil Mist 6 - 8
Diesel Smoke 8
Foundry 6 - 8
Plastic Smoke 8 - 10
Wood Working 8 - 10
General Ambient Air 10

Contact the engineers on staff at Industrial Maid for additional applications not listed above.

 Call TF:877-624-3247

or

Click Here to E-mail

Note:
1) Source capture may be required to meet OSHA PEL or TWA requirements.
2) General Guidelines only - consult factory for specific details.