Portable kit and device for detecting or identifying diseases or disorders in a human subject by collecting biological sample from the human subject

A device for detecting or identifying diseases or disorders in a human subject by collecting biological sample from the human subject comprises a pump unit, a first unit, a second unit, a gas permeable filter, and a collector. The first unit comprises a first chamber and a gas sensor unit. The second unit comprises a second chamber, an outlet portion and an inlet portion. The gas permeable filter is disposed in an upstream region of the second chamber. The collector is disposed in a downstream region of the second chamber. The pump unit is configured, when activated, to create a negative pressure in a gas flow pathway provided between the first chamber and second chamber through the outlet portion, thereby allowing an ambient gas stream forcedly flows from an exterior through the inlet portion into the second chamber and the first chamber.