Abstract: Absorbent element, characterized in that it principally consists of at least two layers (1, 2, 6) of which one layer (1), which is destined to be brought into direct contact with the product to be absorbed, primarily consists of a strongly liquid absorbing hydrophobic material.

Abstract: The invention concerns a sensor construction for, e.g., the measurement of gas concentration, including a sensor element; a heating element arranged in conjunction with the sensor, with which the sensor element can be brought to a temperature above the ambient gas atmosphere temperature; and an electronics circuitry section, with which the desired electrical properties of the sensor element can be measured and the heating element of the sensor can be controlled. According to the invention, the sensor element and the electronics circuitry are placed onto the same planar substrate, and the substrate is processed to have adjacent openings around the sensor element area to the immediate vicinity of the area so that the openings extend through the substrate whereby the sensor area is connected to the surrounding part of the substrate and, then, to the electronics circuitry section, only along thin isthmuses remaining between the openings.

Abstract: Gas mask mainly composed of an inlet and outlet part (1) with possibly a speaking membrane (9), fastening devices (2) for securing the inlet and outlet part (1) before the mouth and nose orifices and a filter connection part (3), which is rotatable towards the inlet and outlet part.

Abstract: A gas mask and accessory therefor having the capability to connect the inside with the outside environment in both the intake of food and the removal of perspiration. The accessory has a slide valve that is biased closed, an elastic drinking straw gripping sealer, and, an ability to position the accessory behind the gas mask filter.