Abstract: An unattended occupant alarm system includes an electronic device that may be carried by a user. A vehicle is included and the vehicle has a cabin, a trunk and an electrical system. A plurality of sensing units is provided and each of the sensing units is coupled to the vehicle. The plurality of sensing units is distributed throughout the cabin and the trunk to detect an occupant in the cabin and the trunk. Each of the sensing units is in electrical communication with the electronic device and each of the sensing units is electrically coupled to the electrical system. Each of the sensing units generates an alarm sequence after a trigger duration of time when the sensing units detects an occupant in the cabin and the trunk. The electronic device emits an audible alarm when the sensing units generate the alarm sequence. In this way the electronic device notifies the user of the unattended occupant in the vehicle.

Abstract: A compost bin for decomposing compostable matter such as food and human waste, comprising a plurality of vertical bin walls which surround a base and define a bin interior which contains the compostable matter. In a preferred embodiment, four vertical bin walls are contemplated, forming a rectangle. A plurality of apertures are formed into the vertical bin walls, and a plurality of hollow ventilation tubes having perforations disposed about the periphery extend through the apertures. A cross-tube connects the hollow ventilation tubes and has a down-turned segment which extends perpendicular to the ground and terminates at an open cross-tube end. A bio-filter bag comprising a porous material and filled with organic material is secured to the open cross-tube end of the cross tube, such that any gases which manage to escape the bin interior through the perforations into the hollow ventilation tubes and down-turned segment of the cross-tube will be effectively filtered.