How do you deal with mercury thermometer which smashed on the bench?

Ensure adequate ventilation, and wear protective gloves and a mask. Use stiff paper or cardboard to carefully scoop up larger pieces, then use sticky tape to lift any remaining glass and Mercury. Place all debris in a sealable container and contact your local hazardous waste disposal facility for proper disposal. Vacuuming or sweeping is not recommended as it can spread mercury vapors.