EXHIBIT 22.1 LIST OF SUBSIDIARIES OF ROTECH MEDICAL CORPORATION A-1 Medical Equipment, Inc. a Florida corporation Abba Medical Equipment, Inc. a Florida corporation Advanced Imaging Center, Inc. a Florida corporation American Medical Rentals, Inc. an Arkansas corporation Anniston Health & Sickroom Supplies, Inc. an Alabama corporation Baumann Pharmaceutical Services, Inc. an Alabama corporation Brister's Pharmacy, Inc., a Mississippi corporation Brooksville Primary Care Clinic, Inc. a Florida corporation Camden Medical Supply, Inc. a Florida corporation Care Medical Supplies, Inc. an Illinois corporation CHI Medical Equipment, Inc. a Florida corporation Church Street Clinic, Inc. a Mississippi corporation Clinical Laboratory, Inc. a Mississippi corporation Coastal Surgical, Inc. a Florida corporation Community Home Oxygen, Inc. a Montana corporation Constant Home Health Care, Inc. a Florida corporation Covington Home Health Care a Kentucky corporation CPO2, Inc. a Pennsylvania corporation Diversified Care, Inc. a Florida corporation Doctors Management Group, Inc. a Louisiana corporation Don Paul Respiratory Services, Inc. a Colorado corporation Drew Primary Care Clinic, Inc. a Mississippi corporation East Tennessee Infusion & Respiratory, Inc. a Florida corporation Family Care Specialists, Inc. a Florida corporation Four Rivers Home Healthcare, Inc. a Missouri corporation Fundamental Home Health Care, Inc. a Florida corporation G & G Medical, Inc. a Colorado corporation Gate City Medical Equipment, Inc. a Florida corporation Greenville Primary Care Clinic, Inc. a Mississippi corporation Greenwood Multi-Specialty Clinic, Inc. a Mississippi corporation Grenada Family Doctors, Inc. a Mississippi corporation Health Care Services of Mississippi, Inc. a Florida corporation Heartland Home Care, Inc. a Florida corporation Hollandale Primary Care, Inc. a Florida corporation Holland Medical Services, Inc. a Florida corporation Home Care Solutions, Inc. a Florida corporation Home Medical Supply, Inc. a Florida corporation Home Medical Systems, Inc. a South Carolina corporation Indianola Primary Care Clinic, Inc. a Mississippi corporation Infusion Services, Inc. an Alabama corporation International Therapeutic Services, Inc. a Florida corporation LAMS, Inc. (d/b/a Amco Medical Services) a Texas corporation Lexington Primary Care, Inc., a Mississippi corporation Liberty Home Health Care, Inc. d/b/a/ Oxygen Specialties a Florida corporation Lovejoy Medical, Inc. a Kentucky corporation Macon Primary Care Clinic, Inc. a Florida corporation Major Medical Supply, Inc. a Texas corporation Medco Professional Services Corp. a Colorado corporation Medical Electro-Therapeutics, Inc. d/b/a/ Preferred Medical Equipment a Florida corporation Murray Medical, Inc. a Colorado corporation National Home Care, Inc. a Florida corporation National Medicine Center - Groveland, Inc. a Florida corporation Nightingale Home Health Care, Inc. a Texas corporation Oxygen of Oklahoma, Inc. an Oklahoma corporation Oxygen Plus Medical Equipment, Inc. a Florida corporation Oxygen Therapy Associates, Inc. a Texas corporation PSI Health Care, Inc. a South Dakota corporation Pioneer Medical Services, Inc. a West Virginia corporation LIST OF SUBSIDIARIES OF ROTECH MEDICAL CORPORATION (CONT.) Polk City Pharmacy, Inc. a Florida corporation Professional Respiratory Home Healthcare, Inc. a Florida corporation Respiracare Medical Equipment, Inc. a Florida corporation Respitech Home Health Care, Inc. d/b/a M&S Oxygen a Wyoming corporation Respiratory Medical Equipment of Georgia, Inc. a Georgia corporation Responsive Home Health Care, Inc. d/b/a Hook's Oxygen and Medical Equipment a Florida corporation RN Home Care Medical Equipment Company, Inc. a Mississippi corporation Roswell Home Medical, Inc. a Florida corporation RoTech Diagnostics, Inc. a Florida corporation RoTech Employee Benefits Corporation, Inc. a Florida corporation RoTech Home Medical Care, Inc. a Florida corporation RoTech Oxygen & Medical Equipment, Inc. a Florida corporation Roth Medical, Inc. a Colorado corporation Rothert's Hospital Equipment, Inc. a Kentucky corporation Select Home Health Care, Inc. d/b/a Kelly's Home Health Care, Inc. a Florida corporation Senatobia Family Practice, Inc. a Mississippi corporation South County Health Care Services a Texas corporation Southeastern Home Health, Inc. a Florida corporation Stat Medical Equipment, Inc. a Florida corporation Sunshine Home Health Care, Inc. d/b/a Orthopedic Convalescent Centers a Florida corporation Suwanee Valley Home Health Care, Inc. a Florida corporation The Towne Pharmacy, Inc. a West Virginia corporation Tupelo Home Health, Inc. a Florida corporation Valley Medical Inc. a Utah corporation VitalCare Health Services, Inc. a Florida corporation VitalCare of Nevada, Inc. a Nevada corporation VitalCare of Pennsylvania, Inc. a Pennsylvania corporation VitalCare of Texas, Inc. a Texas corporation Whites Medical Rentals, Inc. a South Carolina corporation Wichita Medical Care, Inc. a Kansas corporation Wofford Pharmaceutical Services, Inc. an Alabama corporation Women's Health Care Services, Inc. a Florida corporation Worker's Health Care Clinic, Inc. a Florida corporation Zeta Home Health Care, Inc. a Florida corporation