The utility model provides protective material, and a medical exposure suit and a plus pressure protection helmet made of said protective material. The outer later of the protective material is made of fabric materials such as polyester-cotton and pure cotton treated with special technology; the inter-medium layer is a TPU film; the inner layer is made of fabric materials such as polyester-cotton and pure cotton. The protective material is of a width of 0.4 to 0.7 millimeter. The medical exposure suit, made of said protective material, consists of an inner helmet, a vestment and a pair of trousers and they are integrated into a whole; a pair of boots is integrated with the exposure suit; the joints are sewn up with a needle and are sealed with a lamination film. The plus pressure protection helmet is provided with an antifogging window at the front, an exhaust outlet at the rear, a neck fastening elastic belt at the neck, and a head fastening bracket at the inside; the head fastening bracket is provided with an airway which is connected with a blast device; the blast device is arranged inside the sleeve of a blower. An exposure suit and a protection helmet made of said protective material is of the function of water vapor transmission and can block of toxic liquid, gas and particulate matters etc out of the suit. The plus pressure protection helmet is of plus pressure in the process of exhalation as well as inspiration, thereby improving comfort and lightening work intensity.