Why we have the only FDA-Cleared Viral Barrier We have the ONLY ultrasound probe covers FDA-Cleared to be labeled as “viral barriers”* We are the ONLY company to test the full length of our probe cover during viral barrier testing! Other tests use a only small piece of material—not the whole product!—which may not include seams or other potentially weak areas. Sheathing Technologies products have a LOWER AVERAGE defect rate (< 0.4 %) than our competitors, which have been tested in independent studies as having an average leakage rate varying from 2.3% to 65%. Our first-in-class Viral Barrier product EXCEEDS even the barrier standards for condoms