Employees are required to be fit tested on the exact type, size and model of the respirator they will be using:
- Before the respirator is worn.
- Whenever a new type of respirator is used.
- At least annually.
If there are changes in an employees body that affect the respirator fit, a new fit test may be required. These changes may include:
- Weight loss
- Weight gain
- Plastic surgery
- Dental work