An environmentally-friendly portable toilet that is waterless, odorless and cost efficient, that uses a continuous bag supply having a predetermined single dose or portion of at least one chemical automatically deposited therein, the at least one chemical functional to kill pathogens in waste that is deposited through an opening in the seat and a corresponding opening of the continuous bag supply; the waste-filled continuous bag supply is at least temporarily sealed by activation of a mechanical sealing mechanism, and released downwardly into a base section, which is connected to a hard plastic sitting unit, forming an integral, closed system for waterless sanitation.