The safety posters below may be used by any JHU laboratory–just print them out and post!
Be sure to choose a poster suitable for your lab. A poster about lab coats is not appropriate in a mechanical lab where lab coats are forbidden (because they might catch on something). A poster about compressed gases might be a better choice in that case.
Rotate safety posters at least quarterly. Research shows that posters start to lose effectiveness quickly, so “switching them up” is a good way to keep your fellow researchers safety-aware.