All inquiries related to our Medical Concentrators and Respiratory Products for single patient, therapeutic use in the home, hospital, or clinical setting must be submitted through this page (click here) .

Our normal hours of business are Monday through Friday,
8:30 AM to 5:00 PM, Eastern Time in the United States.

International Telephone and FAX numbers are:

T:  1-716-691-0202
F: 1-716-691-1255

If you are located within the United States or Canada, you can call toll free at:
1-800-320-0303.