Expiration date: Expired REF: # 2010-01 Pulmonary Laryngectomy Kit, Provox, 9​/​36 (In Date till 2024) Provox Laryngectomy Kits provide all-in-one packaging for immediate post-operative 24​/​7 pulmonary rehabilitation. The kits feature: Provox Heat and Moisture Exchangers (HMEs) approved for 24-hour use, even while sleeping Clinical studies have shown that most laryngectomized patients who use a Provox HME 24 hours a day experience reductions in mucus production, coughing and forced expectoration Kits provide convenient all-in-one packaging supporting pulmonary care as well as communication needs. Return Policy: Items are sold as-is with no returns or refunds available unless explicitly stated.