The BlenderBuddy 2 equips your blender with the Maxtec DFB (designed for blenders) dual-scale flow meter and also has a built-in oxygen port, which allows gas to be analyzed safely and away from the patient to avoid cross-contamination. It securely attaches to your blender using the DISS outlet connection. The BlenderBuddy 2 also has a micro bleed, which reduces the amount of wasted gas by more than 15 times previous versions. This is all backed by a Maxtec three-year warranty.