Awọn Vials Headspace ti a ṣe nipasẹ Aijiren ni awọn iwọn oriṣiriṣi meji, ọkan jẹ Crimp Neck ati ekeji jẹ Screw Neck. Aijiren nlo borosilicate hydrochloric acid gilasi lati ṣe Headspace Vials, nitori borosilicate hydrochloric acid gilasi le rii daju awọn iduroṣinṣin ti awọn reagent nigbati o jẹ inu awọn Vias. Ati pe o tun le rii daju aabo ti Vials funrararẹ. Gilasi borosilicate ti Aijiren nlo jẹ sooro si iwọn otutu giga, ko rọrun lati fọ, ko rọrun lati nwaye, ati rọrun lati lo.