group 1 ohs tts

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Across
  1. 1. gas that is needed by living is
  2. 6. opening in the wall that is fitted with glass
  3. 8. mechanical vibration that can interfere
  4. 9. effort to maintain security
  5. 10. Light Illuminance
Down
  1. 2. Working environment intermediary
  2. 3. maximum level of noise
  3. 4. music genre that can reduce stress at work
  4. 5. The most annoying smell come from?
  5. 7. The place you put air circulator?