| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Ventilator component | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Respirator, device | Is a | False | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Mechanical ventilator | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Manual respirator, device | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Oxygen ventilator | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Ventilator | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Anesthesia workstation, general-purpose | Is a | False | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Breathing circuit bag, reusable | Is a | False | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Breathing circuit bag, single-use | Is a | False | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Breathing circuit tube | Is a | False | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Ventilator condensate trap, reusable | Is a | False | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Ventilator condensate trap, single-use | Is a | False | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Anesthetic gas scavenging unit | Is a | False | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Ventilator mount, fixed | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Ventilator mount, mobile | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Lung simulator | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Ventilator breathing tube holder | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Demand valve | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Ventilator converter | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Ventilator intermittent mandatory ventilation controller | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Ventilator application software | Is a | False | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Catheter mount, single-use | Is a | False | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Mechanical expiratory valve, reusable | Is a | False | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Catheter mount, reusable | Is a | False | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Mechanical expiratory valve, single-use | Is a | False | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Anesthesia unit, mobile | Is a | False | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Radio-frequency identification expiratory valve | Is a | False | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Clinical data collection/management information system application software | Is a | False | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Ventilator anesthetic agent control unit | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Nitric oxide cylinder | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Stationary pneumatic high-frequency ventilator respiration monitor | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Ventilator tester, line-powered | Is a | False | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Ventilator test system | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Fire safety valve | Is a | False | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Anesthetic gas absorption/desorption device | Is a | False | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Isoflurane and/or sevoflurane recycling anesthesia vaporizer | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Home continuous positive airway pressure unit | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Home bilevel positive airway pressure unit | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Breathing circuit multi-parameter sensor | Is a | False | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Respiratory gas heating wire, infant | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Respiratory gas heating wire, adult | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Respiratory gas heating wire electrical connection cable | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Ventilator breathing circuit | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Expiratory valve | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Neonatal/infant continuous positive airway pressure unit | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Jet ventilation device | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Bilevel positive airway pressure unit hand held | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  | 
| Emergency continuous positive airway pressure device | Is a | True | Ventilator equipment | Inferred relationship | Existential restriction modifier |  |