SDI Diagnostics

SDI is an American manufacturer and supplier – now the largest independent supplier of spirometers and supplies.

SDI Diagnostics Website:

SDI Diagnostics Products

"Filtrette" filter for Easy One and Easy On spirometer

Filtrette - a combined filter and spirette for Easy one and Easy On PC spirometer

Filters for various spirometers

Filters for spirometers

Soft Nose Clip for Spirometry

Nose clips for spirometry testing with soft foam for comfort