world day for safety and health at work

accident annual april awareness background banner builder building business campaign caution celebration concept construction contractor craftsman craftsperson danger day design element employment engineer equipment event eyeglasses face glasses global graphic hard hardhat hat head headwear health helmet holiday icon illustration industrial industry isolated job labor labour map mask object occupation orange poster prevention professional protect protection protective repairman respirator safe safety security service sign staff symbol text tool vector wear work worker working workman world yellow