<p>A humidifier including natural components such as mother-in-tongue law's (<em>Sansevieria sp</em>.) and lemongrass (<em>Cymbopogon nardus</em>) extracts is required to control room air quality. The purpose of this study was to assess the chemical composition and anti-fungal and anti-germ capability of <em>Sansevieria sp</em>. and <em>Cymbopogon nardus </em>in a room. The experimental method and One Group Pre-test Post-test Design were utilized in this investigation. To minimize airborne germs, <em>Sansevieria </em><em>sp</em>. and <em>Cymbopogon nardus </em>extract were used as humidifier modification materials in this case. Concentrations of <em>Sansevieria sp</em> extract of 30%, 40%, and 50% were made available. The data was analyzed using Anovatest.The Anova test results showed that the <em>Sansevieria sp</em>. extracts with concentrations of 30%, 40%, and 50% had p-values greater than 0.05. It signifies that there was no significant or insignificant difference in the concentrations used, hence the extracts of <em>Sansevieria sp </em>and <em>Cymbopogon nardus </em>extracts had the same effective antibacterial potential in this investigation. It was determined that <em>Sansevieria sp</em> and <em>Cymbopogon nardus </em>extract as modified humidifier solution at concentrations of 30%, 40%, and 50% have the same efficacy in decreasing Germ in the room air.</p>