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Discovery
Researcher Studies Indoor Air Particles and Their Movement

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image of rug fibers as seen through a microscope

A microscope image of rug fibers with deposited test particles.

Credit: Andrea Ferro, Clarkson University


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wind tunnel apparatus

A basic wind tunnel apparatus. Floor samples seeded with particles are placed in the test section and images of the particles on the flooring surface are taken over time. The images are analyzed to determine the relationship between particle detachment and friction velocity.

Credit: Andrea Ferro, Clarkson University


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image of particles on a floor

Particles on a flooring surface. The particles are sized and counted using the National Institutes of Health imaging software.

Credit: Andrea Ferro, Clarkson University


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interior of an experimental chamber for particles

The inside experimental chamber. Flooring samples are kept in a filtered, temperature and humidity controlled cabinet (A). Flooring samples seeded with particles are then tested using a mechanical foot apparatus designed to mimic a human walking using electronically-controlled actuators (B). Particle concentrations are monitored and re-suspension characteristics can be compared for various types of flooring.

Credit: Andrea Ferro, Clarkson University


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