Esmeralda Herrero BSc. PhD


Esmeralda Herrero graduated from University College Dublin (UCD) with a BSc in Pharmacology and completed a PhD in Microbiology in University College Dublin. Her research investigated bacterial proteases and their role in prion decontamination and was filed into a UK patent in 2015. Following her PhD, Esmeralda worked for a year as research and development scientist for a novel biotech company before her role as scientific officer in virology in airmid healthgroup.

Esmeralda has over 5 years research experience in mammalian cell culture, molecular biology, bacterial culturing, infectious assays, protein purification, protein biochemistry and laboratory management


Tristan Russell BSc. PhD


Tristan graduated from the University of Leeds with a BSc in Microbiology. During his degree, Tristan completed a one-year internship at a pharmaceutical company where he gained experience of working in an industrial laboratory. Tristan moved to Ireland in 2014 after choosing to study for a PhD at University College Dublin. The PhD research used molecular biology techniques to study infectious disease, specifically host-virus interactions. Tristan recently graduated from his PhD and joined the virology team at airmid healthgroup in the spring of 2019.  


Kevin Ellison


Kevin is in his third year at DCU where he has been studying Genetics and Cell biology. He is working in the Environmental Chambers under the supervision of Jake Behan.


ASTM F1977 - 04(2010)

Description of the test

Standard test method for determining the initial fractional fitration efficiency of a vacuum cleaner system, with or without the motor emissions mathematically removed in the calculation of efficiency.

Products that can be tested

Household and commercial(tank-type), stick, hand held, upright and utility vacuum cleaner systems.


The initial fractional filtration efficiencies of the entire vacuum cleaner system, at six discrete particle sizes (0.3, 0.5, 0.7, 1.0, 2.0, and >3μm) is derived by counting upstream challenge particles and the constituent of downstream particles while the vacuum cleaner is being operated in a stationary test position.  The vacuum cleaner system is tested at the nozzle with the normal airflow rate produced by restricting the inlet to the nozzle adapter with the 1¼ - in orifice.  The system is tested with a new filter installed, and with no preliminary dust loading.  The fractional efficiencies determined by this test method shall be considered initial system filtration efficiencies.  The filters are not changed between test runs on the same cleaner.

This is a brief introduction to the standard for the full standard visit

Samples Required

3 vacuum cleaners with 9 bags and 9 filters

Turnaround Time

4 weeks



More Information


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