H&S

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Across
  1. 2. Device used to detect smoke (5 letters)
  2. 3. The act of being careful (7 letters)
  3. 7. Practice to avoid workplace injuries (8 letters)
  4. 8. Signal to evacuate (3 letters)
Down
  1. 1. First aid item for cuts (4 letters)
  2. 4. A sign indicating a hazard (6 letters)
  3. 5. A plan for emergencies (10 letters)
  4. 6. Protective gear worn on the head (5 letters)