1. Isticmaalka kali ah, EO sterilization, calaamadda CE;
2. Tuubada isku xirka nuugista waxay ka samaysan tahay PVC-caafimaad cad, tayo sare leh;
3. Naqshad hex-arris si looga fogaado xannibaadda tuubada sababtoo ah cadaadis sare;
4. Dhererka tuubada isku xirka nuugista waa la habeyn karaa.Dhererka caadiga ah wuxuu noqon karaa 2.0M, 3.M, 3.6M iwm;
5. Saddex nooc oo gacan-qabsiga Yankauer ah ayaa diyaar ah: caarad fidsan, caarada nalka, caarada taajka;
6. Hawo ama hawo la'aan waa ikhtiyaari.