Apples can help prevent constipation, arthritis, gout, gastroenteritis, and diarrhea. Apples are excellent diet foods. Only 47 calories per apple. Even the smell of an apple has a calming effect. Apple pie, apple juice, fresh apples are all great.
The National Institute for Occupational Safety and Health (NIOSH) is the United States federal agency responsible for conducting research and making recommendations for the prevention of work-related injury and illness.
At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration: (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode.