Okay so in my health book it says 120/80 to 139/89 is prehypertesion. but my doctor says my blood pressure is perfect at 120/80. so whos right? i say my doctor but why does the book say thats wrong?

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