Effect of Motion and Headwear on Particle Contamination in Clean Environments

This study examined differences in particle release due to various types of human activity and two types of head covering. The number of particles released from female subjects while clothed in a selected garment and different head and face coverings during five types of movements was statistically analyzed. Results indicated that the complete coverage hood, which enclosed the entire head and face, was more effective in containing particle release from head and face areas at minimal activity levels than was the traditional hood. However, at maximum activity involving arm and body twist movements, both hoods were similar in terms of controlling particle contamination from head and face areas.