Portable decontamination and deodorization systems configured to decontaminate a target environment for specified periods of time. A housing contains pressurized media. A spherical media diffuser can be connected to and controlled by a sphere retainer module and a funnel-like orifice can be located under a lower hemisphere of the spherical media diffuser to move the spherical media diffuser and over the funnel-like orifice creating a gap there-between to evenly distribute chemical in a fog or spray throughout a room. a valve controller can be coupled by tubing between media contained in said housing and the gap formed between the spherical media diffuser and funnel-like orifice.