Correlation between Environmental Relative Moldiness Index (ERMI) values in French dwellings and other measures of fungal contamination

► The average ERMI was 15.7 for high versus 2.7 for the low ERMI dwellings in France. ► ERMI values were correlated with concentrations of fungi in air samples. ► ERMI values were correlated with the visible estimates of fungal contamination. ► Older dwellings were more likely to fall into the high ERMI category. ► ERMI values can possibly substitute for other estimates of fungal contamination.