If your job requires you to use a respirator, your employer is required to do three things. what is missing from the list?

have you medically evaluated to determine that it is safe for you to wear a respirator

train you on how and when to use a respirator

a.

fit checking your respirator before each use

b.

fit testing you for the respirator brand you desire

c.

fit checking your respirator after each use

d.

fit test you for the appropriate respirator size and type

D. Fit test you for the appropriate respirator size and type

Explanation:

If you require respirator at your job, along with other two in the list, fit test is also required for appropriate respirator size and type. Once passed the fit test, you should use the same respirator size, model and style of respirator. Respirator fit test is used to test whether the respirator fits the mouth or not, so accordingly you are to use that sized respirator.

what effect does exercise have on the nervous system?

the answer is c.