One of the easiest places for airborne viruses and bacteria to easily spread is in confined spaces, like elevators. To protect the safety and wellbeing of occupants, we designed the Flesta Refresh with a specially designed plasma conversion tube, that uses a specific voltage to convert the electrons in the air particles into charged ions to clean up indoor air pollution effectively. Flesta Refresh effectively treats and sanitises residential and commercial indoor spaces of up to 15m³, making it suitable for use in places such as small rooms, elevators, office pantries, small business spaces, and other similar, small confined areas.