How to Choose a Medical Ventilator in 2026: A Practical Buying Guide for Hospitals

A medical ventilator is one of the most important pieces of respiratory support equipment used in hospitals, intensive care units, emergency departments, operating rooms, recovery areas, and patient transport environments.

However, purchasing a ventilator is not simply a matter of comparing prices or choosing the system with the longest specification list.

Different clinical departments may require very different ventilator configurations.

An intensive care unit may need a comprehensive ventilator capable of supporting multiple ventilation modes and detailed respiratory monitoring. An emergency department may prioritize rapid setup and portability. A transport team may need a compact ventilator with reliable battery operation, while a hospital treating neonatal and pediatric patients may require equipment specifically designed for smaller patient populations.

The appropriate configuration therefore depends on the intended patient population, clinical department, ventilation requirements, available gas supply, monitoring needs, mobility, technical support, and budget.

For hospitals, distributors, medical project contractors, and healthcare buyers currently comparing a medical ventilator for sale, this guide explains the major types of ventilators and the most important factors to consider before purchasing.

What Is a Medical Ventilator?

A medical ventilator is a respiratory support device designed to assist or provide ventilation when a patient requires mechanical breathing support.

Depending on the system and clinical application, a ventilator may regulate parameters related to respiratory rate, pressure, volume, oxygen concentration, inspiratory time, and other ventilation settings.

Modern hospital ventilators may also provide respiratory monitoring, waveforms, loops, alarm systems, and different ventilation modes.

The exact functions vary considerably between models.

Ventilators may be used in:

• Intensive care units

• Emergency departments

• Operating rooms

• Recovery rooms

• Neonatal and pediatric departments

• Ambulances

• Inter-hospital transport

• Intra-hospital patient transfer

• Respiratory care departments

• Other clinical environments requiring mechanical ventilation

Because these environments are very different, hospitals should define the application before selecting a specific machine.

Step 1: Determine Where the Ventilator Will Be Used

One of the first questions should be:

Where will the ventilator operate most of the time?

This determines many of the technical and practical requirements.

ICU Ventilator

An ICU ventilator is typically intended for continuous respiratory support in critically ill patients.

Hospitals may place greater emphasis on:

• Multiple ventilation modes

• Comprehensive parameter adjustment

• Respiratory monitoring

• Waveforms and loops

• Alarm management

• Long-term continuous operation

• Patient data display

• Adult and pediatric compatibility

• Oxygen and air supply requirements

• Integration into ICU workflow

For a busy intensive care unit, an advanced ICU ventilator may provide greater flexibility than a basic respiratory support device.

Emergency Department Ventilator

Emergency departments may have different priorities.

Rapid setup, intuitive controls, portability, and flexibility can become particularly important.

The equipment may need to be moved quickly between treatment areas or used while a patient is stabilized before transfer to another department.

Operating Room and Recovery

Ventilation may also be required around surgical procedures.

However, hospitals should distinguish between a standalone ICU ventilator and the ventilation system integrated into an anesthesia machine.

The appropriate equipment depends on how the hospital organizes anesthesia, recovery, and intensive care.

Transport Ventilator

Transport applications place a strong emphasis on:

• Small size

• Low weight

• Battery life

• Secure mounting

• Portable gas supply

• AC/DC power compatibility

• Fast startup

• Clear display

• Alarm visibility

• Reliable operation during movement

A transport ventilator should therefore be evaluated separately from a full-size ICU machine.

MRI Environment

Some patient transfers or procedures may require ventilation near an MRI system.

Standard medical equipment should not automatically be assumed to be suitable for this environment.

If the hospital requires ventilation during MRI-related transport or procedures, buyers should specifically evaluate equipment designed and specified for the intended MRI environment.

Step 2: Define the Patient Population

Ventilator configuration also depends on the patients who will be supported.

Adult Patients

General ICU ventilators commonly support adult ventilation and may include a wide range of pressure- and volume-related modes.

Hospitals treating primarily adults should evaluate the system based on their ICU and respiratory care requirements.

Pediatric Patients

Pediatric patients may require different ranges for tidal volume, pressure, flow, and monitoring.

If a ventilator is expected to support both adults and pediatric patients, buyers should confirm exactly which patient categories the manufacturer specifies.

Neonatal Patients

Neonatal ventilation is a specialized application.

Very small patients require different performance characteristics from adult ventilation.

Hospitals with a NICU should not assume that every adult/pediatric ventilator is automatically appropriate for neonatal applications.

If neonatal ventilation is required, buyers should specifically evaluate:

• Minimum supported patient size

• Tidal volume range

• Pressure-control capability

• Flow characteristics

• Trigger sensitivity

• Neonatal breathing circuit compatibility

• Humidification

• Monitoring

• Alarm configuration

• Specialized neonatal modes where applicable

A dedicated neonatal ventilator may be more appropriate for facilities with significant neonatal workload.

Step 3: Understand Invasive and Non-Invasive Ventilation

One important purchasing distinction is whether the system is designed for invasive ventilation, non-invasive ventilation, or both.

Invasive Mechanical Ventilation

In invasive ventilation, respiratory support is provided through an artificial airway according to the patient's clinical management plan.

ICU ventilators typically provide multiple invasive ventilation modes and extensive respiratory parameter control.

For buyers, important considerations include:

• Available modes

• Pressure range

• Volume range

• PEEP control

• Trigger systems

• Oxygen concentration adjustment

• Monitoring

• Alarm configuration

• Patient categories supported

Non-Invasive Ventilation

Non-invasive ventilation provides respiratory support using an interface such as a mask rather than an invasive airway.

Dedicated non-invasive ventilators may be used in respiratory departments, emergency care, and other appropriate clinical environments.

When comparing non-invasive ventilators, hospitals may consider:

• Pressure support range

• Leak compensation

• Trigger sensitivity

• Interface compatibility

• Humidification options

• Monitoring parameters

• Alarm systems

• Patient comfort-related functions

Some ICU ventilators can support both invasive and non-invasive ventilation, while other systems are designed primarily for one type.

The hospital should determine which applications are actually required before purchasing.

Step 4: Compare Pneumatic and Turbine-Based Ventilators

Another important difference concerns how the ventilator generates airflow.

Ventilators Requiring Compressed Air

Some ICU ventilators depend on hospital compressed air and oxygen sources.

This can be appropriate in facilities with centralized medical gas infrastructure.

Before purchasing, buyers should confirm:

• Air pressure requirements

• Oxygen pressure requirements

• Connector standards

• Gas consumption

• Backup arrangements

A ventilator that depends on compressed air may create installation challenges if the hospital does not have an appropriate central air supply.

Turbine Ventilator

A turbine ventilator generates airflow internally and may therefore reduce dependence on an external compressed-air source.

This can be useful in hospitals where centralized medical air infrastructure is limited or where greater mobility is required.

However, an internal turbine does not eliminate all infrastructure requirements.

Hospitals should still evaluate:

• Oxygen source

• Power supply

• Battery

• Filter maintenance

• Turbine service requirements

• Noise

• Ventilation performance

• Backup arrangements

YSENMED's current ventilator range includes several ICU turbine ventilator configurations as well as conventional ICU, transport, non-invasive, and neonatal systems.

Step 5: Understand the Main Ventilation Modes

Ventilator specifications often contain long lists of abbreviated ventilation modes.

This can make product comparison confusing.

Instead of choosing the machine with the longest mode list, procurement teams should confirm which modes the clinical department actually uses.

Common categories may include:

Volume-Controlled Ventilation

The ventilator delivers ventilation according to selected volume-related parameters.

Pressure-Controlled Ventilation

Ventilation is controlled according to selected airway pressure parameters.

SIMV

Synchronized intermittent mandatory ventilation combines mandatory breaths with opportunities for spontaneous breathing according to the selected configuration.

Pressure Support

Pressure support may assist spontaneous breathing according to the selected settings.

CPAP

Continuous positive airway pressure can be used in appropriate spontaneous breathing applications.

Advanced or Adaptive Modes

Higher-level ventilators may include additional modes, automated functions, or manufacturer-specific ventilation strategies.

Hospitals should evaluate these functions carefully.

A long list of advanced modes may increase the cost of the system but provide little value if the clinical team does not use them.

The correct question is not:

“How many modes does this ventilator have?”

It is:

“Does this ventilator provide the modes required by our clinical protocols?”

Step 6: Evaluate Ventilator Monitoring

Modern ventilators do more than deliver ventilation.

They can also provide information about the patient's respiratory status and the operation of the ventilator.

Depending on the model, monitoring may include parameters related to:

• Airway pressure

• Tidal volume

• Minute ventilation

• Respiratory rate

• PEEP

• FiO₂

• Compliance

• Resistance

• Spontaneous breathing

• Leakage

• Other respiratory parameters

Many ICU ventilators also display:

• Pressure-time waveforms

• Flow-time waveforms

• Volume-time waveforms

• Pressure-volume loops

• Flow-volume loops

A larger amount of monitoring data is not automatically better.

The information must be useful, clearly displayed, and consistent with the clinical team's workflow.

Step 7: Evaluate the Display and User Interface

Ventilator operation can involve many settings and monitored values.

A clear user interface is therefore important.

Hospitals should evaluate:

Screen Size

A larger screen can make waveforms and parameters easier to view.

Touchscreen or Physical Controls

Some ventilators rely heavily on touchscreen operation, while others combine physical controls and touchscreen input.

Each approach has advantages.

Menu Structure

Frequently used settings should be accessible without unnecessary navigation.

Parameter Visibility

Critical values and alarm information should remain easy to identify.

Language Options

International hospitals may require multiple interface languages.

Night Mode or Display Adjustment

Display brightness and nighttime usability may also matter in ICU environments.

A technically advanced machine can still create workflow problems if the user interface is unnecessarily complicated.

Step 8: Understand the Alarm System

Ventilator alarms are an important part of respiratory support equipment.

Different systems may provide alarms related to conditions such as:

• High airway pressure

• Low airway pressure

• High respiratory rate

• Low respiratory rate

• High tidal volume

• Low tidal volume

• Low oxygen concentration

• Apnea

• Circuit disconnection

• Power interruption

• Battery status

• Gas supply

• Technical faults

Hospitals should confirm:

• Which alarms are included

• Whether alarm limits are adjustable

• How alarm priority is displayed

• Whether visual and audible alarms are provided

• How alarm history is managed

• How alarms are handled during transport

• What happens during loss of power or gas supply

The objective is not simply to select the ventilator with the largest number of alarms.

The alarm system needs to be clear, clinically appropriate, and easy for trained staff to manage.

Step 9: Evaluate Oxygen Supply Requirements

Most medical ventilators used in critical care require an oxygen source.

However, the configuration may vary.

Buyers should determine:

• Required oxygen pressure

• Whether low-pressure oxygen is supported

• Whether a high-pressure pipeline is required

• Oxygen connector type

• Whether an oxygen cylinder can be used

• Expected oxygen consumption

• How FiO₂ is controlled and monitored

These questions are particularly important for transport ventilators and hospitals without centralized oxygen infrastructure.

A ventilator that performs well in a fully equipped tertiary hospital may not be the most practical choice for a smaller facility with different gas-supply conditions.

Step 10: Evaluate Medical Air Requirements

Some ventilators require both compressed medical air and oxygen.

Others use an internal turbine to draw room air and mix it with oxygen.

This distinction can have a major influence on installation.

Before ordering, hospitals should clarify:

Does this ventilator need an external compressed-air source?

If the answer is yes, verify whether the intended installation location has the appropriate pipeline or air compressor.

If the system contains an integrated turbine, buyers should still investigate long-term turbine maintenance and filtering requirements.

Step 11: Consider Battery Performance

Battery capability matters for:

• Transport

• Emergency use

• Power interruption

• Patient transfer

• Temporary movement between departments

Hospitals should confirm:

• Internal battery operating time

• Charging time

• Battery status display

• Battery replacement availability

• External battery options

• DC vehicle power compatibility for transport models

Battery specifications should be evaluated under realistic operating conditions.

Transport departments may need significantly longer operating time than an ICU where battery power serves primarily as temporary backup.

Step 12: Choose Between ICU and Transport Ventilators

One common purchasing mistake is trying to use one ventilator design for every hospital application.

ICU and transport ventilators generally have different priorities.

A hospital may therefore need both types.

For example, a patient may receive respiratory support using an ICU ventilator and then require a transport ventilator when moving to imaging or another facility.

Step 13: Determine Whether a Mobile ICU Ventilator Is Appropriate

There is also a middle category between large ICU platforms and ultra-compact transport systems.

A mobile ICU ventilator may combine:

• ICU ventilation capability

• Touchscreen interface

• Battery operation

• Trolley mobility

• Wider patient applications

This type of system can be useful when hospitals need greater mobility without sacrificing many ICU functions.

However, the exact specification should be reviewed carefully.

The term "mobile ICU ventilator" can mean different things depending on the manufacturer.

Step 14: Consider Ventilator Humidification

Mechanical ventilation frequently requires consideration of respiratory gas humidification according to the hospital's clinical protocols.

The ventilator itself may not always include an integrated humidifier.

Buyers should therefore ask:

• Is a humidifier included?

• Is it optional?

• Which humidifiers are compatible?

• Is heated humidification supported?

• What breathing circuits are required?

• Are temperature probes included?

• What consumables are needed?

This is particularly important when comparing quotations.

One supplier may provide only the ventilator, while another may include humidification and breathing circuit accessories.

These are not identical packages.

Step 15: Consider the Breathing Circuit and Accessories

A ventilator cannot be evaluated only as a main machine.

The complete clinical setup may require:

• Breathing circuits

• Filters

• Humidifier

• Oxygen hose

• Air hose

• Test lung

• Water traps

• Nebulization accessories

• Patient interfaces

• Trolley

• Support arm

• Battery

• Air compressor

• Other accessories

Before comparing prices, buyers should ask exactly what is included.

A lower ventilator price may become less attractive once essential accessories are added separately.

Step 16: Evaluate Infection-Control and Cleaning Requirements

Ventilator equipment and accessories require cleaning and maintenance according to hospital procedures and manufacturer instructions.

Buyers should consider:

• Which components are reusable

• Which components are disposable

• How breathing circuits are managed

• How filters are replaced

• How external surfaces are disinfected

• Whether expiratory components are removable

• Whether parts require sterilization

• Recommended replacement intervals

• Availability of consumables

For hospitals purchasing multiple ventilators, consumable availability can become a major long-term consideration.

Step 17: Evaluate Data and Connectivity

Some ICU ventilators can connect with other hospital systems.

Depending on the model, possible features may include:

• Data export

• Network connectivity

• Central monitoring

• Patient data integration

• USB export

• Trend storage

• Remote service functions

Not every healthcare facility requires these capabilities.

However, hospitals with digital ICU infrastructure may want to evaluate connectivity before purchasing.

Adding compatibility later may be more difficult than selecting the appropriate configuration from the beginning.

Step 18: Consider the Ventilator's Physical Design

Mechanical specifications are important, but physical design also affects usability.

Hospitals should review:

• Equipment dimensions

• Weight

• Trolley design

• Wheel brakes

• Handle design

• Circuit support arm

• Storage space

• Cable management

• Hose management

• Screen position

In crowded ICU environments, equipment footprint can matter.

The ventilator needs to work alongside:

• Patient monitor

• Infusion pumps

• Syringe pumps

• Bed

• Suction system

• Oxygen equipment

• Other life-support devices

A well-designed trolley can improve organization around the bedside.

Step 19: Evaluate Air Compressor Requirements

Some ventilator configurations may use an external medical air compressor when centralized compressed air is unavailable.

If this applies to your hospital, evaluate:

• Compressor compatibility

• Output pressure

• Continuous operation capability

• Noise

• Filters

• Maintenance

• Power requirements

• Spare parts

An air compressor should be considered part of the complete ventilation system rather than an afterthought.

For some hospitals, selecting a turbine ventilator may simplify this requirement.

Step 20: Compare Medical Ventilator Prices Correctly

A frequent purchasing question is:

How much does a medical ventilator cost?

There is no universal answer.

Medical ventilator prices vary widely because the equipment ranges from relatively compact transport systems to highly advanced ICU platforms.

Pricing can be influenced by:

• ICU or transport application

• Invasive ventilation

• Non-invasive ventilation

• Adult, pediatric, or neonatal use

• Turbine configuration

• Number of ventilation modes

• Respiratory monitoring

• Screen size

• Waveforms and loops

• Oxygen monitoring

• Battery

• Compressor

• Humidifier

• Accessories

• Trolley

• Brand

• Certification

• Warranty

• Training

• Technical support

For this reason, buyers should avoid comparing two ventilators only by headline price.

A low-priced transport ventilator and a comprehensive ICU ventilator are completely different systems.

Even two ICU ventilators may have significantly different configurations.

Always request a complete quotation.

Step 21: Consider Total Cost of Ownership

Purchase price is only one part of ventilator cost.

Hospitals should also evaluate:

• Breathing circuits

• Filters

• Oxygen sensors

• Flow sensors

• Batteries

• Humidifier components

• Turbine maintenance

• Air compressor maintenance

• Calibration

• Preventive maintenance

• Spare parts

• Training

• Technical service

• Shipping

• Future software updates where applicable

A ventilator with a lower purchase price may become expensive if essential consumables or spare parts are difficult to source.

Hospitals purchasing multiple units should calculate long-term operating requirements as part of procurement.

Step 22: Evaluate Preventive Maintenance Requirements

A ventilator is a complex medical device that requires routine technical management.

Before purchasing, ask the supplier:

• What preventive maintenance is recommended?

• What parts require periodic replacement?

• How frequently is calibration required?

• Are service manuals available to authorized technicians?

• Are spare parts available?

• Can remote troubleshooting be provided?

• Is factory service available?

• What technical training can be offered?

Hospitals with biomedical engineering departments may have different service requirements from smaller facilities relying primarily on supplier support.

Step 23: Evaluate the Supplier

The ventilator supplier is almost as important as the equipment configuration.

Before placing an order, consider asking:

1. Which ventilator do you recommend for our ICU?

2. Which patient categories does the model support?

3. Does it support invasive ventilation?

4. Does it support non-invasive ventilation?

5. Which ventilation modes are available?

6. Does it use a turbine?

7. Does it require compressed medical air?

8. What oxygen supply is required?

9. What is the battery operating time?

10. Which monitoring parameters are included?

11. Which alarms are available?

12. Is a humidifier included?

13. Is a trolley included?

14. Is an air compressor required?

15. Which accessories are included?

16. Which consumables require regular replacement?

17. What spare parts are available?

18. What warranty is provided?

19. Is remote technical support available?

20. Can technical training be provided?

A reliable supplier should be able to explain the differences between ventilator configurations based on the hospital's actual application.

Which Medical Ventilator Is Best for an ICU?

For an ICU, hospitals may prioritize:

• Multiple ventilation modes

• Adult and pediatric capability

• Invasive and non-invasive support where required

• Comprehensive monitoring

• Waveforms and loops

• Reliable alarm system

• Appropriate oxygen and air configuration

• Battery backup

• Easy-to-use interface

• Data trends

• Strong technical support

Hospitals should determine whether neonatal capability is also required.

If neonatal ventilation is a significant part of the department's workload, a dedicated neonatal platform may be more appropriate.

Which Medical Ventilator Is Best for a Small Hospital?

Smaller hospitals should avoid assuming that they need the most advanced ICU system available.

A practical ventilator configuration may focus on:

• Core ventilation modes

• Adult/pediatric support

• Intuitive operation

• Essential monitoring

• Reliable alarms

• Flexible oxygen supply

• Turbine operation if compressed air is unavailable

• Battery backup

• Affordable consumables

• Accessible technical support

The objective should be to purchase sufficient capability for the hospital's actual patient population.

Which Ventilator Is Best for Emergency Transport?

For transport, priorities change significantly.

A transport ventilator should be evaluated according to:

• Portability

• Weight

• Battery life

• Mounting

• Gas supply

• Power options

• Rapid operation

• Screen visibility

• Alarm system

• Patient categories

• Required ventilation modes

• Durability

For ambulance use, the complete system configuration should be discussed with the supplier, including mounting and power arrangements.

Which Ventilator Is Appropriate When Hospital Compressed Air Is Unavailable?

If the facility does not have centralized medical compressed air, a turbine ventilator may be worth considering.

An internal turbine can generate airflow without requiring a central compressed-air source.

However, oxygen and electrical requirements still need to be considered.

Hospitals should compare:

• Turbine performance

• Oxygen supply requirements

• Power consumption

• Battery

• Noise

• Filter maintenance

• Long-term servicing

This can be particularly relevant for hospitals developing new ICU capacity where medical gas infrastructure is limited.

Medical Ventilator Buying Checklist

Before requesting a final quotation, prepare the following information.

Department:
ICU, emergency, operating room, transport, NICU, or mixed use.

Patient population:
Adult, pediatric, neonatal, or multiple categories.

Ventilation type:
Invasive, non-invasive, or both.

Required modes:
Clinical team requirements.

Compressed air:
Central medical air available or unavailable.

Oxygen supply:
Pipeline, cylinder, or other available source.

Turbine:
Required or not required.

Monitoring:
Required respiratory parameters, waveforms, and loops.

Battery:
Required operating time.

Transport:
Stationary, mobile, ambulance, or inter-hospital use.

Humidifier:
Required or supplied separately.

Air compressor:
Required or not required.

Trolley:
Required or included.

Accessories:
Breathing circuits, hoses, filters, test lung, support arm, humidifier, and other accessories.

Quantity:
Number of ventilators required.

Power supply:
Local voltage and frequency.

Service:
Warranty, spare parts, technical training, preventive maintenance, and remote support.

Providing this information can make supplier recommendations significantly more accurate.

Frequently Asked Questions About Medical Ventilators

What is a medical ventilator?

A medical ventilator is a respiratory support device designed to assist or provide ventilation when mechanical breathing support is required. Different ventilators are designed for ICU, emergency, transport, neonatal, and other clinical applications.

What is the difference between an ICU ventilator and a transport ventilator?

An ICU ventilator generally emphasizes comprehensive ventilation modes, monitoring, continuous bedside use, and integration with critical-care workflow. A transport ventilator prioritizes compact size, low weight, battery operation, mobility, and reliable operation during patient transfer.

What is a turbine ventilator?

A turbine ventilator generates airflow using an internal turbine. This can reduce dependence on a centralized compressed-air supply, although the system may still require oxygen and electrical power.

Can one ventilator be used for adults, children, and newborns?

Some ventilators support multiple patient categories, but buyers should verify the manufacturer's specified patient range carefully. Neonatal ventilation has specialized requirements, and not every adult/pediatric ventilator is appropriate for newborns.

What is the difference between invasive and non-invasive ventilation?

Invasive ventilation provides respiratory support through an artificial airway, while non-invasive ventilation uses an external patient interface. Ventilator compatibility with each method varies by model.

Does a ventilator need compressed air?

It depends on the design. Some systems require a central compressed-air source, while turbine ventilators can generate airflow internally. Hospitals should confirm air and oxygen requirements before purchase.

Does a ventilator need oxygen?

Most hospital critical-care ventilators require an oxygen source for adjustable oxygen delivery. The exact pressure, connection, and supply requirements depend on the model.

How long does a ventilator battery last?

Battery operating time varies significantly between ventilator models and operating conditions. Transport buyers should evaluate battery specifications carefully and confirm whether additional or replaceable batteries are available.

How much does a medical ventilator cost?

Medical ventilator pricing varies considerably according to ICU or transport use, patient population, ventilation modes, turbine configuration, monitoring, battery, accessories, brand, and technical support. Complete system configurations should be compared rather than headline prices alone.

Where can hospitals compare different ventilators?

Hospitals, distributors, and medical project buyers can review the YSENMED medical ventilator range, which currently includes ICU respirators, turbine ventilators, non-invasive ventilators, transport systems, mobile ICU ventilators, MRI-oriented transport options, and neonatal ventilation equipment.

Choosing the Right Medical Ventilator Starts With Clinical Requirements

There is no single medical ventilator that is ideal for every hospital.

A tertiary ICU may need a comprehensive ventilation platform with multiple modes and detailed respiratory monitoring.

A regional hospital may prioritize dependable core ventilation functions, intuitive operation, and a turbine configuration that reduces dependence on centralized compressed air.

An ambulance service may need a compact transport ventilator with long battery operation.

A NICU may require a specialized neonatal ventilation platform.

For this reason, the ventilator purchasing process should begin with:

• Clinical department

• Patient population

• Invasive or non-invasive ventilation

• Required ventilation modes

• Oxygen infrastructure

• Compressed-air availability

• Monitoring requirements

• Transport requirements

• Battery needs

• Accessories

• Consumables

• Maintenance

• Technical support

• Budget

Once these requirements are clearly defined, comparing ventilators becomes significantly easier.

YSENMED offers multiple ventilator configurations for intensive care, emergency departments, patient transport, neonatal applications, hospital projects, distributors, and international healthcare facilities.

The most effective purchasing strategy is not to select the ventilator with the largest number of functions.

It is to select a system that provides the respiratory support capabilities, infrastructure compatibility, usability, and long-term service support required by the hospital's actual clinical environment.