A contamination control system for ductless air conditioners is disclosed. The contamination control system may be formed from one or more decontamination lamps contained within a tubular housing that is hollow and includes an internal cavity extending from the first end to the second end with at least one longitudinally extending sight window positioned between first and second tubular end regions. The decontamination lamp may be positioned within the internal cavity in the tubular housing. The tubular housing may be held in place with a mounting system including at least one tubular housing receiver in which the tubular housing is secured. The tubular housing is slidably held within the mounting system such that the tubular housing is slidable longitudinally relative to the tubular housing receivers and is rotatable within the tubular housing receivers. The decontamination lamp may be activated with a photo activated sensor.
