How Many AEDs Does a Factory With 1,000 Workers Need?

There is no fixed number of automated external defibrillators (AEDs) required for a factory with 1,000 workers. The appropriate number depends on several factors, including the size of the facility, the number of work areas and floors, workforce distribution, distances between departments, and how quickly an AED can be brought to someone experiencing a medical emergency.

A factory where 1,000 workers are concentrated in one building will have very different needs from a facility with the same workforce spread across multiple workshops, warehouses, offices, and production areas. Before purchasing AEDs, businesses should therefore map out their workplaces, identify areas where employees are regularly present, and develop a practical plan to ensure timely access to the devices.

1. Does a Factory With 1,000 Workers Need AEDs?

Yes. With a large workforce and potentially extensive operating areas, a factory should seriously consider assessing its emergency response needs and establishing an AED programme. However, having 1,000 employees does not automatically mean that a specific number of AEDs is required.

Sudden cardiac arrest is a medical emergency in which every minute matters. Early recognition, prompt activation of emergency medical services, immediate cardiopulmonary resuscitation (CPR), and early defibrillation when indicated are all essential parts of an effective emergency response.

An AED is designed to analyse a person's heart rhythm and provide instructions on whether a shock is needed. Its effectiveness in an emergency therefore depends not only on whether a factory has the device, but also on how quickly it can reach the person in need and whether employees know how to respond.

This is particularly important in industrial settings, where employees may work across several different areas, including production workshops, raw material warehouses, finished goods storage, packaging areas, technical rooms, offices, canteens, break rooms, and other supporting facilities. The distances between these locations can be considerably greater than those found in a typical office environment.

Image: AED placement in a factory with 1,000 workers should be based on practical accessibility rather than workforce size alone.

2. Can the Number of AEDs Be Determined by the Number of Workers?

Not necessarily. Workforce size is only one factor to consider. What matters more is how quickly an AED can be accessed and brought to the scene of an emergency.

For example, a factory with 1,000 employees working in a relatively compact building may require a very different AED arrangement from another factory with the same number of employees spread across several buildings.

Similarly, keeping an AED in the medical room may be convenient for equipment management, but it may not be the most practical location if the room is far from production areas or only accessible during certain hours.

3. What Factors Determine How Many AEDs a Factory Needs?

3.1. Facility Size and Distribution of Production Areas

The larger and more spread out a factory is, the more important it becomes to assess AED accessibility before deciding how many devices are needed.

A factory may consist of several areas serving different purposes. Employees are not always stationed along production lines; they also move between warehouses, technical rooms, rest areas, and other facilities throughout their shifts.

For this reason, AED placement should cover the entire site where employees work, rather than focusing only on administrative areas or the medical room.

Businesses should begin by creating a site map and marking locations where employees are regularly present. They can then identify the actual routes people would need to take to retrieve an AED from each proposed location.

It is also important to account for obstacles that could delay access during an emergency, such as security-controlled doors, stored goods, machinery, restricted areas, or routes that require significant detours.

According to guidance from the Resuscitation Council UK, the time required to retrieve an AED and bring it to the scene of an emergency should not exceed four minutes. Businesses should therefore select the number and locations of AEDs based on the layout and accessibility of their facilities.

3.2. Number of Buildings and Distances Between Work Areas

A factory with 1,000 employees working across several separate buildings may need a different AED placement strategy from one where all employees work in a single centralised production facility.

When workshops are located far apart, having someone travel from one building to another to retrieve an AED can delay emergency response.

In such cases, businesses should consider placing AEDs in individual buildings or groups of work areas that operate relatively independently.

This does not mean that every workshop must have its own AED. The decision should still take into account travel distances, access routes, employee numbers, operating hours, and how quickly the device can be retrieved.

3.3. Number of Floors and Internal Access Routes

Multi-storey factories need to pay particular attention to stairs, lifts, and the practical challenges of moving an AED between floors.

For example, if employees work on the first, second, and third floors but the only AED is located on the first floor, the time needed to reach someone experiencing cardiac arrest will vary depending on where the emergency occurs.

If lifts are difficult to access during emergencies or internal routes are complicated, relying on a single AED may not be sufficient.

When planning AED coverage, businesses should therefore go beyond simply marking device locations on a floor plan. They should also assess the actual routes employees would need to take to retrieve an AED and bring it to the person in need.

4. Where Should AEDs Be Placed in a Factory?

AEDs should be placed in clearly visible, easily accessible locations that suit the factory's daily operations. The priority should be quick access during an emergency, rather than simply choosing a convenient place to store the equipment.

A medical room may be an appropriate location in some factories, but it is not always the best option. If the room is far from production lines, locked, or unattended outside normal working hours, retrieving an AED could take longer than necessary.

A commonly used placement benchmark is to ensure that an AED can be retrieved and brought back to the emergency scene within four minutes.

Depending on the factory's layout, suitable locations may include central areas, main corridors, places with high concentrations of employees, or areas where staff are regularly on duty.

What matters most is that workers, security personnel, shift supervisors, and emergency response teams know exactly where the AEDs are located and can access them immediately when needed.

Signs should also be clear and easy to recognise. If an AED is stored in a cabinet, the cabinet should make the device easy to identify and retrieve. Protecting the equipment should never create unnecessary barriers for someone trying to respond to an emergency.

5. How Should AEDs and CPR Be Integrated Into a Factory's Emergency Response Plan?

AEDs do not replace CPR. Both are essential components of an effective response to cardiac arrest and should be used together.

When someone is found unresponsive and cardiac arrest is suspected, emergency medical services should be contacted immediately. At the same time, a trained responder should begin CPR while another person retrieves the nearest AED.

While waiting for the AED or professional medical assistance, CPR helps maintain blood flow to the brain.

Once the AED arrives, the responder should attach the electrode pads and follow the device's instructions.

This coordinated approach is particularly important in factories, where an emergency may occur far from the medical room or trained healthcare personnel.

Simply purchasing AEDs without training employees in CPR and emergency response procedures addresses only part of the problem.

6. Can Factory Workers Without Medical Training Use an AED?

Yes. AEDs are designed to assist people without a medical background through spoken instructions, visual prompts, or other signals. However, employees should still receive appropriate training and practical guidance on how to respond to an emergency.

Responders do not need to interpret an electrocardiogram (ECG) or decide for themselves whether a shock is required.

Once the electrode pads are correctly attached, the AED analyses the heart rhythm and provides instructions on what to do next.

During rhythm analysis or shock delivery, responders must follow the device's safety prompts and ensure that no one is touching the person when instructed to stand clear.

AED training in factories should therefore focus on the complete emergency response process, rather than simply teaching employees how to switch on the device.

Workers should know where AEDs are located, how to call for assistance, how to coordinate CPR, and how to follow the AED's instructions safely.

7. What AED Deployment Strategy Is Suitable for a Factory With 1,000 Workers?

The most suitable AED deployment strategy depends on the factory's layout and how its workforce is distributed. Applying a fixed AED-to-employee ratio is unlikely to reflect the actual needs of every facility.

Factory Characteristics	Recommended AED Placement Approach
1,000 workers concentrated in a relatively compact area	Assess whether a centrally located AED can be accessed quickly and verify its accessibility through practical drills.
Multiple production lines within one building	Identify areas farthest from the existing AED and assess whether additional locations are needed.
Several buildings located far apart	Assess each production area or group of buildings separately rather than relying entirely on one central AED.
Multi-storey factory	Evaluate routes between floors, including stairs and lifts, and the time needed to bring an AED to the scene.
Operations running 24/7 or across multiple shifts	Ensure AEDs remain accessible at all times and that employees on every shift understand the emergency response procedures.
Production and storage areas spread across the site	Assess access routes to warehouses, workshops, and other areas where employees are regularly present.

This table is not a formula for calculating a mandatory number of AEDs. Instead, it provides a starting point for identifying areas where access may be delayed and developing a placement strategy suited to the factory's actual layout.

8. How Can Factories Improve the Effectiveness of AEDs During Cardiac Arrest Emergencies?

CPR and AED training plays an important role in turning emergency equipment into a practical, coordinated response system.

In a factory with 1,000 workers, emergency preparedness should not depend on a single trained individual. Employees working in different areas and on different shifts may be the first to encounter an emergency.

Businesses can establish a core response team consisting of safety officers, on-site medical personnel, security staff, shift supervisors, and employees who regularly work in key areas.

Training should cover recognition of cardiac arrest and breathing emergencies, activation of emergency medical services, CPR, AED operation, correct placement of electrode pads, compliance with device instructions, and coordination between responders.

More importantly, training should include realistic emergency scenarios. Practical drills help employees develop the confidence and ability to respond effectively, rather than relying solely on what they remember from theory-based lessons.

9. Frequently Asked Questions About AEDs in Factories

9.1. Is It Enough to Keep One AED in the Factory's Medical Room?

Not always. If the medical room is far from production areas or difficult to access outside regular working hours, retrieving the AED may take too long.

The entire factory layout should be assessed before deciding whether one location can provide adequate coverage.

9.2. Can an AED Replace CPR?

No. CPR should begin as early as possible to help maintain blood flow to the brain.

An AED works alongside CPR by analysing the heart rhythm and delivering a shock when indicated.

Whether an AED is immediately available or not, CPR remains essential when responding to a person in cardiac arrest.

9.3. Can Workers Without Medical Qualifications Use an AED?

Yes. AEDs are designed to assist people providing first aid before professional medical teams arrive.

However, businesses should provide CPR and AED training so employees can recognise an emergency, call for help, perform CPR, and use the device safely.

9.4. How Often Should AED Batteries and Electrode Pads Be Replaced?

Replacement intervals depend on the AED model and the manufacturer's instructions.

Businesses should regularly check the expiry dates and condition of batteries and electrode pads rather than applying the same replacement schedule to every device.

9.5. Should Factories Conduct AED Emergency Drills?

Yes. Emergency drills help businesses assess how effectively employees can recognise an emergency, call for assistance, retrieve an AED, perform CPR, and bring the device to the scene.

They can also reveal practical obstacles that may not be obvious from a floor plan alone.

10. AED Readiness Checklist for a Factory With 1,000 Workers

Before purchasing additional AEDs or changing their locations, businesses can use the following checklist to evaluate their current emergency preparedness.

• Site layout: Has the entire facility been mapped, including all areas where employees work?

• Work areas: Have production workshops, warehouses, and supporting facilities been assessed individually?

• Accessibility: Have actual retrieval routes been checked from the areas farthest away from an AED?

• Device access: Can employees retrieve an AED quickly without depending on someone who holds a key?

• Signage: Can workers and security personnel easily identify AED locations?

• Shift coverage: Do employees on different shifts know where the AEDs are and how to respond to an emergency?

• CPR readiness: Are there trained personnel who can perform CPR and coordinate AED use?

• Electrode pads: Are the AED pads within their expiry dates and compatible with the devices?

• Batteries: Are the batteries within their service life, and are the AEDs free from warning or fault indicators?

• Emergency procedures: Are responsibilities clearly assigned for calling emergency services, retrieving an AED, and assisting with CPR?

• Practical drills: Has the business tested how quickly AEDs can be brought to more distant work areas?

If several of these requirements are not being met, purchasing more AEDs may not be the only solution.

The problem could instead lie in where the devices are placed, how employees access them, inadequate signage, insufficient training, or a lack of coordination during emergencies.

11. Where Should Businesses Start When Introducing AEDs Into a Factory?

For a factory with 1,000 workers, the first step should not be choosing how many AEDs to buy or which models to purchase. It should be evaluating the facility's existing emergency response arrangements.

Businesses should begin by surveying the site, mapping all areas where employees work, identifying AED access routes, reviewing staffing across different shifts, and establishing clear procedures for coordinating CPR, AED use, and emergency medical assistance.

Once these steps have been completed, the business can make informed decisions about the number and placement of AEDs.

The next stage involves selecting devices suited to the working environment and intended users, arranging employee training, establishing procedures for managing AED batteries and electrode pads, and scheduling regular emergency drills.

No single AED model is the perfect choice for every factory. The right solution depends on the working environment, the people who will use the equipment, the device's features, operational requirements, and the ability to maintain it over time.