We offer a wide selection of standard venturi-style masks that feature six diluter jets ranging from 24% to 50% FiO2 . The masks are available with various oxygen diluters to accommodate pediatric or adult patients. All masks are under-the-chin style and are supplied with 6" flextube, humidification hood and 7' crush-resistant tubing. We also offer a venturi-style adapter kit with a tracheostomy mask. For use with 50 psi oxygen source and flowmeter.