info@rdsusa.com
P: 978-970-1947 • F: 978-970-1948
6 Courthouse Lane, Suite 8
Chelmsford, MA 01824
info@rdsusa.com
P: 978-970-1947 • F: 978-970-1948
6 Courthouse Lane, Suite 8
Chelmsford, MA 01824
Harvard School of Public Health
Department of Environmental Science and physiology Biology Program

665 Huntington Ave., Boston, MA 02115

Ralph W. Niven, Ph.D. M.R. Pharm S.

Discussion & Conclusions

MicroSpacer® the screen valve delivery system successfully blocks large aerosol particles from impacting the back of the throat while allowing smaller aerosol particles to pass thru., deep into the lungs.