Although aldosterone retains Sodium and water, it induces excretion of Potassium. Potassium can be induced by angiotensin II. Antidiuretic Hormone (ADH) ADH is a polypeptide, which is secreted by the hypothalamus, and it is stored in the posterior pituitary gland. ADH is released when water level is low in the blood stream. ADH regulates the body water level by concentrating urine and thereby reducing urine volume.
Gas masks are essential in an evacuation of a biological or chemical disaster. Knowing how to use it properly will increase your chance for survival. There are different types of gas masks, and you should follow the specific instructions for that particular mask.
Masks can shield us from danger or can suggest danger to others. They can be part of our assumption of what we would like to be, or of what we fear we may become. We can laugh at the mask, or run screaming from it. And the mask can transform its wearer so as to assume the character of a very different person or of a being from some other world.