Free calculator

Dust & PPE Calculator

Estimate the silica risk of a task and the protection it needs.

Silica risk is a product of three things: how much crystalline silica the stone contains, whether the method makes respirable dust, and how long you are exposed. Granite cut dry for two hours is a fundamentally different proposition from soapstone worked wet for twenty minutes.

Inputs

Result
HIGH
relative silica risk for this task

Things to know

  • This is an educational estimate, not a workplace exposure assessment.
  • Wet methods can reduce airborne dust by roughly 90 % on most operations.
  • A respirator does not make an unsafe method safe. Control the dust first.