UVGI Scientific Calculator

The physical basis and algorithm of the ultraviolet germicidal irradiation (UVGI) scientific calculator are presented herein. The algorithm was implemented in the web application UVGI Scientific Calculator (found at https://covid-19-clean.org/calculator-journal-report/) that has been used to facilitate the engineering and design of air-purifying equipment being developed for use in hospitals, commercial and residential applications. Presented examples of the calculations illustrate how different factors of the construction of a UVGI air-purifier may influence the degree of virus inactivation.