Dry Powder Material Unpacking Controls

Operations Unpacking dry powders when there is the potential for aerosolization and release of nanomaterials into the workplace atmosphere.


  • Ventilated Laboratory Hood or local exhaust enclosure with HEPA* exhaust filtration
  • If an exhausted enclosure is not available, PPE should be used to minimize potential for respiratory, dermal and eye exposure
  • Latex or nitrile clean room gloves
  • Wet cleaning of laboratory hood surfaces or local exhaust enclosure following conclusion of handling operations
  • The filtered air must not be recirculated into the workplace.

Alternatively, Control Banding may be employed when more is known about material reactivity, exposure duration and material state.

Material Specific Controls