A modular waste disposal or recycling container and modular container system are disclosed. The container includes a base and one or more sidewalls extending upwardly from the base. The base and the one or more sidewalls together define an interior space for receiving waste or recyclables. A sidewall of the one or more sidewalls comprises one or more sockets, and each of the one or more sockets is capable of removably receiving a respective one of a magnet, a ferromagnetic insert and a plug with a cap that covers the socket. The modular container system includes at least two containers, one having magnetic properties on a first sidewall and the other having ferromagnetic properties on a second sidewall. When placed adjacent to each other, the first and second sidewalls releasably adhere to each other.

A system for holding food waste includes a first housing forming a chamber to hold the food waste, the chamber comprising at least a first port, and a second housing comprising at least a second port configured to couple with at least the first port, and a fan to provide airflow into the chamber through at least the second port, the first housing removably coupled with the second housing such that removal of the first housing from the second housing decouples at least the first port from at least the second port.

An apparatus for providing airflow over food waste includes a first housing coupled with a second housing, the first housing having a chamber to hold food waste, the second housing comprising a fan, the first housing and the second housing being coupled to form one or more input channels for the fan to cause air to flow from the second housing through the first housing into the chamber, and the first housing and the second housing forming one or more output channels for the air to flow from the chamber through the first housing and the second housing and out of a vent of the second housing, wherein none of the one or more input channels intersect with any of the one or more output channels.

A trash can that can be broken down for washing is disclosed. The trash can includes a lid, one or more intermediate segments, a base connecting segment having a female connector, a base having a male connector, one or more fasteners, and one or more magnets. The one or more fasteners allows the lid to engage with an intermediate segment; an intermediate segment with another intermediate segment; and an intermediate segment with the base connecting segment. The one or more magnets allows the base connecting segment to engage with the base. The one or more female connectors engage with the one or more male connectors. The trash can also includes a link rod sustained by one or more rod supports.