Abstract View
Miniature High-Flowrate Biosampler for Distributed Deployment
DAVID ALBURTY, Andrew Page, Ann Packingham, David Goad, InnovaPrep LLC
Abstract Number: 375
Working Group: Bioaerosols
Abstract
A 200 LPM dry-electret sampler weighing less than a kilogram with 4-hr rechargeable battery was developed for fieldable use and tested in April, 2020 for collection of killed SARS-CoV-2 using portable qPCR. The sampler features an omnidirectional inlet and simple faceplate button operation. The sample filter is contained in an interface ring to avoid cross-contamination and provide ease of sample handling. Filter elution is performed with a wet foam which collapses to a small volume for analysis, providing a higher concentration ratio than is possible with vortexing. Selection of the filter material in combination with the sample inlet was done to maximize the collection of particles across the size range from 10 nanometers to 11 microns. The sampler is constructed of materials compatible with bleach and other disinfectants and cleaners. It has built-in feet allowing exhaust flow away from the inlet and can be tripod-mounted or hung in location. This sampler combines rapid, effective, bioaerosol sampling with a 30-second sample elution process that is compatible with fieldable qPCR to provide a simple solution for public health monitoring of airborne pathogens.