We use use a bacterial filter that is manufactured by Microgard. It is designed to capture 99% of all aerosolized bacterial and viral pathogens. It is the same type of filter used in hospitals by respiratory technicians. This filter is used with the Go Direct® Spirometer (
The PDF below is the specifications sheet released by Microgard for this filter.
http://www2.vernier.com/til/1532/MicroGard.pdf
RELATED VERNIER PRODUCTS
–Disposable Bacterial Filters for Spirometer (
–Disposable Mouthpieces for Spirometer (
–Noseclips for Spirometer (
–Spirometer Flow Head (