Abstract: A container for medical waste products includes a receptacle and a closure member. The closure member is connected to a resiliently deformable member biasing the closure member to close the aperture to the receptacle. In one version the closure member is a cap guided by rails over the surface of the container and having a skeletal outer frame connected to the container which is distorted by opening of the aperture.There is also disclosed a device for rendering unusable a hypodermic syringe. The device may be provided as a removable insert for the container.

Abstract: A control system controls a plurality of gas dehydrators in which each dehydrator has a dessicant bed. The system includes sensors sensing parameters of gas entering and leaving each dehydrator which provide corresponding signals. First valve apparatus connected to each dehydrator receives moist gas. Second valve apparatus connected to each dehydrator provides for a discharging of dehydrated gas from each dehydrator in accordance with control signals. Third valve apparatus connected to each dehydrator receives regeneration gas and provides the regeneration gas to a dehydrator in accordance with control signals. Fourth valve apparatus connected to each dehydrator provides for the discharge of regeneration gas after passage through the dehydrator in accordance with control signals.