Engineering Controls: Isolate People from the Hazard  

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• Designed to control the hazard at the source before it comes in contact with the worker through isolation or enclosure of the process.
• Often an integral part of the device or equipment (built-in feature).

Examples include:

• • General dilution ventilation and local exhaust ventilation
  • Safety engineered devices: needleless device systems, scalpels, lancets
  • Equipment guards/shields/lids
  • Rubber dam/sheath placed around tooth/teeth to minimize droplet and aerosols in dentistry; high volume evacuations
  • Sharps containers
  • Closed-system drug transfer devices (CSTDs)
  • Replacing manual cleaning of instruments with automated cleaning washers
  • Scavenging systems, fume hoods, biological safety cabinets (BSC) for hazardous drug preparation and transfer, air purification
  • Anesthetic gas scavenger systems
  • Patient lifts