A double center study to evaluate the safety and efficacy of the Aer-O-Scope in traveling through the colon in low risk subjects.

Asymptomatic adults between the ages of 18 and 70 will undergo screening of the colon using the aer-o-scope, under fluoroscopy, following by screening of the colon using a standard approved colonoscopy for determination of safety.

Inclusion Criteria:

• Male or female patients between 18 and 70 years of age
• Patients who are generally healthy and classified as low risk for CRC
• Patients who are ready to undergo standard colonoscopy examination including colon prep.
• Signed informed consent

Exclusion Criteria:

• Patients with any known GI related symptoms complaints or GI diseases
• Patients with cancer or other life threatening diseases or conditions
• Patients with unstable or uncontrolled cardiovascular, pulmonary, hepatic, renal' gastrointestinal, genitourinary, hematological, coagulation, immunological, endocrine/metabolic, or other medical disorder that, in the opinion of the investigator, would confound the study results or compromise patient safety. Patients with a known history of blood clotting problems and /or who are on anti-coagulant therapy and cannot stop treatment for the purpose of this study. (Patients taking up to 100mg aspirin for prophylactic treatment are acceptable for this study).
• Pregnant women
• Patients who underwent abdominal surgery that is deemed by the investigator to effect the procedure
• Morbid Obesity (BMI > 40)
• Drug abuse or alcoholism
• Bed-ridden patient
• Inadequate communication with the patient
• Patients under custodial care
• Participation in current clinical study or clinical study within 30 days prior to the procedure