Question

should you fire the nail gun into the air in a safe direction prior to use? you should never fire the nail gun into the air it is safe to fire the nail gun into the air always test the nail gun prior to use by firing it into the air in a safe direction

Explanation:

Firing a nail - gun into the air is dangerous as the nail can fall back and cause injury or damage. It should never be done.

Answer:

You should never fire the nail gun into the air