Dust collection creates a static electrical charge, so all collector systems must be grounded with copper wire to prevent combustion. There are many good reasons other than health for using a dust collector in woodshops.
Wood dust has been identified by the Occupational Safety and Health Administration (OSHA) as both a potential safety and health hazard.
There are three primary factors to consider when designing a dust collection system for your woodshop. If fine, powdery wood dust is heavily concentrated in the air and exposed to a spark, it can cause an explosion, similar to what can happen in a grain silo.
The third factor is to determine whether to use a single or double stage collection system.. In any type of woodworking environment, wood dust and wood shavings can lea to serious health and fire hazards.
This stops metal objects like nails and screws from hitting the impeller and causing a spark. A double or dual stage collection system deposits the larger wood pieces and shavings in a bin before they reach the impeller.