A ClO₂ foam designed for the disinfection of non-invasive ultrasound transducers, transducer holders, cables, keyboards, and ultrasound stations. Proven bactericidal, fungicidal, and virucidal. Also kills Mycobacterium tuberculosis in one minute. Published scientific research concludes that Tristel DUO is successful in inactivating Human papillomavirus (HPV) type 16 and type 18¹. Will not damage ultrasound transducers and can be used with any ultrasound dry wipe, making it a convenient and economical solution for transducer disinfection. For use when low-level disinfection is insufficient and high-level disinfection is excessive or impractical.