An adhesive nostril patch that is precision cut and punched to provide a central opening, and to provide edge margins configured to approximate the configuration of the margins of the nostril opening for adherence thereto in fluid tight relation, in combination with a length of tubing having one end diagonally cut to facilitate forcible insertion of the tubing into the central opening of the patch, and having the opposite end flanged to engage the adhesive side of the patch, whereby air from the nostril is constrained to flow into the tubing for measurement of its pressure by external pressure measurement equipment.

A system for the detection of oil or water leakages having a housing with a plurality of openings. The housing is to have a sufficient volume to permit the expansion of an absorbent material when such is placed within it. Additionally the housing is to have a hollow rod extending from it. Running through the rod is a wire. One end of the wire extends into the housing and holds a weighted member. The other end of the wire is connected to means for signaling persons of the presence of the liquid sought to be detected. When an expandable absorbent material is placed in the housing and the material detects the presence of a particular liquid, the absorbent material expands. This expansion forces the weighted member to push the wire through the hollow rod so that the signaling means are activated. In a modification of the present invention, underground leakages in oil and/or water tanks may also be detected and signaled to persons in the area. Absorbent materials are also disclosed for use in the invention, including an absorbent for use in a quench oil tank.