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

Particle size Distribution from Several MDI’S with a MicroSpacer® or a MicroChamber®

Harvard School of Public Health
Department of Environmental Science and Physiology Respiratory Biology Program

665 Huntington Ave., Boston, MA 02115

James D. Blanchard, Ph.D. Harvard School of Public Health

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Discussion & Conclusions

To determine whether two new spacer device (MicroSpacer®, MicroChamber®), alter the mass of respiratory particles delivered from several metered dose inhalers (MDI).

Both MicroSpacer® and MicroChamber® have little or no effect upon the size distribution of the respirable aerosol particles. The aerosol particles are successfully delivered and available for patients to inhale deep into their lungs.