This system is considered a safer alternative because the needle is contained in a cartridge with a backflow preventer reducing the risk of cross-contamination and needle stick injury for the artists. Cartridge needle systems with no backflow preventer (also known as a membrane or barrier), are not guaranteed to prevent the contamination of blood and body fluids inside the grip sleeve or the drive bar, which may contaminate the needle.
The membrane is a backflow preventer of this type are suitable for the protection of drinking water systems against back pressure, back flow, and back siphonage. The membrane needle is individually packed in a medical bag and sterilized by EO gas. Without the trouble of needle and caps, you just open the needle bag and screw in the machine gun of black pearl 3.0 or YD simple machine/Bluesky 2.0, etc. Needle pins are medical-grade stainless steel.
