Grimm Aerosol Spectrometers applied in aerosol research for the benefit of COVID-19 measures
Recently the interest has increased in the origin and behavior of aerosols in indoor facilities. More specific, the effects of ventilation in combination with air purification systems on the aerosol distribution and concentrations. Knowledge of the behavior of aerosols, and the effects of air filtration and/or air purification systems in the field, can result in insights into organising indoor activities in a safe way with the minimum loss of energy.
In the Netherlands, a large field experiment was performed to get an idea of the concentrations and size distributions of aerosols in a large indoor sports and fitness center. The effects of a customised innovative air purification system was also evaluated in this field test. The whole test was performed during the peak of the COVID-19 restrictions. Many details had to be taken into account as well as for the preparations for the field test itself.
The Laser Scattering Aerosol Spectrometers (LSAS) of Grimm Aerosoltechnik, have been used for the measurement of the particle size distributions at high time resolution. This includes the measurement of the particle emissions from the breathing of athletes. During the sports activities, small sensors were applied to measure the PM concentrations at different heights. The LSAS of Grimm aerosol was also used as a reference device to check the performance of these sensors.
The study was carried out by researchers of the faculties Built Environment and Industrial Design of Eindhoven University of Technology in collaboration with Sportinnovator and PlasmaMade B.V.
The municipality of Eindhoven, Isala Ziekenhuizen, Go2Sure, NL Actief, NOC*NSF and the multinational organisations Ansys and the Avicenna Alliance for Predictive Medicine are closely involved in the study.
More details and information of the study will follow after publication of the scientific papers.