Mask, sample collecting tube, and pathogen collecting apparatus

A mask, comprising:

• a mask body;
• a breather valve fixed on the mask body;
• and
• a sampling structure comprising a pathogen adsorption portion, wherein the pathogen adsorption portion is disposed on an inner side of the breather valve and is adapted to adsorb pathogens in exhaled gas, and wherein the pathogen adsorption portion is adapted to enter a sample collecting tube to be in contact with a sample preservation solution in the sample collecting tube,
• wherein the breather valve comprises:
• a valve casing having an exhaust vent;
• a valve plate disposed on the valve casing and configured to expose the exhaust vent when the wearer exhales and to close the exhaust vent when the wearer inhales;
• and
• a valve cover arranged on an outer side of the valve casing, and an exhaust space being defined by the valve cover and the valve casing;
• wherein the valve cover has an air vent in communication with the exhaust space,
• wherein the valve plate is disposed in the exhaust space, and
• wherein the valve plate has a filter layer disposed on an outer side thereof, the filter layer having a fluffy state in which the filter layer is adapted to filter incoming air from the air vent, and a compressed state in which the filter layer is air-tight and water-impermeable.