Abstract: Method for sampling air in proportion to respiration, particularly the collection of air pollutants in proportion to the actual respiration of the wearer. The method is characterized by its use of a pump supported adjacent the thoracic cavity and activated by the expansion and contraction of the thoracic cavity during respiration, so as to draw air through an air sampling monitor.

Abstract: Device for sampling air in proportion to respiration, particularly the collection of air pollutants in proportion to the actual respiration of the wearer. The pump is supported adjacent the thoracic cavity by means of a harness and is activated by the expansion and contraction of the thoracic cavity during respiration, so as to draw air through an air sampling monitor.

Abstract: A manually operable, disposable diagnostic device which is useful for the rapid measurement of coagulation rates consists of a uniform bore reaction tube which may be used to take up the sample and contains the appropriate amounts of lyophilized reagents required to conduct individual tests such as that for prothrombin time. In an example, calibration marks on the tube have been correlated in terms of prothrombin times. The position at which a liquid sample becomes immobilized as it descends down the tube corresponds to the test time. The rate of descent is controlled by a limiting orifice or by inclining the tube to the vertical axis.