25
SETUP
Choosing the Exhaust Management
Method
There are five options for managing the
exhaust generated during the laser
fabrication process:
A. Onboard Fan
B. External Booster Fan (design flow
rate at least 90 CFM)
C. Light Duty Filtration Unit
D. Heavy Duty Filtration Unit
E. Commercial/Industrial Mechanical
Exhaust System (design flow rate at
least 90 CFM)
When selecting an appropriate exhaust
management method, multiple factors
must be considered, such as the intended
operating location of the Dremel LC40
Laser Cutter, the size of room where it will
be operated, and the frequency and
duration of laser fabrication. Consult Table
3 below to determine an appropriate
exhaust management method.
Room size in Table 3 is based on ceiling
height of 8.5 feet. Adjust room size for
actual ceiling height. If room size or laser
fabrication time is not known, err on the
side of caution and select the higher
fabrication time and/or smaller room size.
Home, office, and classroom scenarios in
Table 3 are based on standard models
from the EPA, ASHRAE, and CDPH, results
may vary based on your use location and
operating parameters. Always operate the
Dremel LC40 Laser Cutter in a well-
ventilated area. Installer of Dremel LC40
exhaust management system is
responsible for complying with applicable
codes and regulations including those for
hazardous or noxious exhaust ventilation
systems.
Exhaust
Management
Method
Maximum Laser Fabrication Time in hours/day (hr/day) and hours/week (hr/wk)
Home/Residential Office/Commercial Classroom
Room Size
30-450 sq ft*
Room Size
> 450 sq ft*
Room Size
50-450 sq ft*
Room Size
450-650 sq ft*
Room Size
> 650 sq ft*
Room Size
> 500 sq ft*
A: Onboard Fan
2 hr/day
5 hr/wk
2 hr/day
8 hr/wk
2 hr/day
11 hr/wk
¸
B: External
Booster Fan
¸ ¸ ¸ ¸ ¸ ¸
C: Light Duty
Filtration Unit
¸
2 hr/day
14 hr/wk
¸ ¸
D: Heavy Duty
Filtration Unit
¸ ¸
E: Commercial/
Industrial
Mechanical
Exhaust System
N/A N/A
¸ ¸ ¸ ¸
Table 3: Exhaust Management Method Selection
¸ = OK up to 3.75 hours/day, 18 hours/week of laser fabrication time. For additional details contact Dremel
customer service.
= Do not use for Dremel LC40 Laser Cutter.
= Consult filtration system manufacturer.
N/A = Exhaust management method not applicable for this use location.
* Room size is based on ceiling height of 8.5 feet. Adjust room size for actual ceiling height. Do not use Dremel LC40
Laser Cutter in rooms smaller than specified in Table 3.
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