Abstract:
This research aimed to determine the effectiveness of the improvement wood dust
ventilation system. The experiment was conducted on wood sanding machines by using the
principles, concepts and engineering design methods to calculate the air flow rate, size and length
of the air duct. The design was conducted by considering properties of the material and
comparing the effectiveness of wood dust ventilation by measuring the concentration of wood
dust (Total dust) before and after the installation of the ventilation system - according to NIOSH
Method 0500 (NIOSH, 1994), wood dust samples included hardwood, softwood and
manufactured board.
The results of the study showed that the concentration of all three types of wood dust
decreased. Manufactured board had the highest reduction by 87 percent. Softwood had reduction
by 66 percent. Hardwood had the lowest reduction by 59 percent. The experiment found that the
cost of ventilation construction was low. It can be used as a standard for further control of wood
dust in the workshop.