Using AEDs in Workplaces When Seconds Matter

A colleague collapses in a reception area, classroom, warehouse or staff room. They are unresponsive and not breathing normally. In that moment, using AEDs in workplaces is not about ticking a health and safety box. It is about giving someone the best possible chance of survival while the ambulance service is on its way.

An automated external defibrillator, or AED, is designed to analyse a person’s heart rhythm and, where appropriate, advise or deliver a shock. It works alongside immediate CPR, a prompt 999 call and a workplace response that is clear enough to follow under pressure. Protecting your people means preparing all four elements before an emergency happens.

Does every workplace need an AED?

There is no single rule that makes an AED mandatory in every UK workplace. Under the Health and Safety (First-Aid) Regulations 1981, employers must provide appropriate and adequate first aid equipment, facilities and personnel. What is appropriate depends on a first aid needs assessment.

That assessment should consider more than employee numbers. Think about the age profile of staff and visitors, the nature of the work, shift patterns, lone working, public access, previous incidents, distance from emergency services and how easily an ambulance can reach the site. A large office with a busy public reception may reach a different decision from a small team working close to an ambulance station. A school, care setting, leisure venue, construction site or remote industrial unit may have particularly strong reasons to provide an AED.

The question is not simply, ‘Do we have one?’ It is, ‘Could a person in cardiac arrest be reached, treated and handed over effectively here?’ An AED can be a highly valuable part of that answer, but only if it is accessible, maintained and supported by people who know what to do.

Why speed changes the outcome

During a cardiac arrest, the heart stops pumping blood effectively around the body. The person may collapse, become unresponsive and either stop breathing or make occasional gasping sounds. Those gasps are not normal breathing and must be treated as an emergency.

Call 999 immediately, start CPR and send someone to collect the AED. The ambulance call handler can give instructions while help is on the way. The AED then speaks or displays clear prompts, analysing the heart rhythm and advising whether a shock is needed. It will not advise a shock unless it detects a shockable rhythm.

This matters because defibrillation is time-critical. CPR keeps some oxygenated blood moving to the brain and heart, but it does not replace defibrillation when a shockable rhythm is present. A well-placed workplace AED, retrieved without delay, can bridge the critical minutes before paramedics arrive.

Choosing the right AED for your site

Most modern AEDs are made for use by members of the public as well as trained first aiders. However, choosing a model should still be a practical decision rather than a purchase based on price alone.

Consider the environment first. A device in a clean, temperature-controlled office has different protection needs from one in a factory, sports area, school playground or external public-facing cabinet. If the AED is stored outside, the cabinet may need heating, weather protection, security and a reliable power supply. The route to it must remain open at all times.

You should also consider whether paediatric pads or a paediatric setting are required. This is especially relevant for schools, nurseries, community venues and places where children regularly visit. Adult pads should not be substituted casually for child-specific equipment where the manufacturer’s instructions require a paediatric option.

Clear visual and voice prompts are useful in any setting. So are rescue-ready packs containing items such as scissors, a razor, gloves, a face shield or pocket mask, absorbent wipes and a towel. These supplies help staff expose and dry the chest quickly enough for pads to adhere properly.

Where should an AED be kept?

An AED in a locked office, inside a manager’s drawer or behind a reception desk that closes at 5pm is not truly available. Position it somewhere highly visible, quickly reachable and clearly signed. Staff, contractors and regular visitors should know where it is.

For larger sites, assess travel time rather than relying on a single central location. A device may be close on a floor plan yet too far away in practice if someone has to use stairs, pass through security doors or cross a large warehouse. Consider the time it takes to reach high-risk areas, separate buildings, car parks and outdoor spaces.

It is sensible to tell the local ambulance service about publicly accessible devices where applicable and follow the relevant registration process. This can help call handlers direct a bystander to an available AED in an emergency. Registration does not replace a workplace plan, but it can strengthen community access outside normal working hours.

Train people to act, not just to recognise the box

AEDs are designed to guide the user, and a person should not delay using one because no formally trained first aider is present. Yet practical training gives a workplace something more valuable than familiarity with the device - it gives people the confidence to take charge of the first critical minutes.

Staff should practise recognising cardiac arrest, checking for danger, calling 999, starting effective chest compressions, attaching pads and following the AED prompts. They should understand how to allocate roles too: one person calls emergency services, one starts CPR, another brings the AED and someone meets the ambulance crew at the entrance.

Basic Life Support training is particularly useful because it allows teams to rehearse the sequence under realistic pressure. People learn that they do not need to wait for permission, search for a senior manager or spend precious time debating what has happened. They need to act safely and decisively.

Training should include sensible adaptations. For example, staff need to know that a wet chest should be dried, medication patches should be removed if they are in the pad position, and nobody should touch the casualty while the AED is analysing or delivering a shock. In care settings, teams may also need to consider individual care plans and agreed escalation decisions. This is why a generic approach is rarely enough.

Build the AED into your emergency plan

Buying an AED without reviewing your emergency arrangements creates a false sense of security. The device must fit into a plan that staff can remember on their worst day, not just a policy stored on a shared drive.

Set out who calls 999, who retrieves the AED, who takes over CPR when they become tired and who directs paramedics to the casualty. Make sure reception, security, site wardens and first aiders know their roles. If your premises has coded doors, barriers or a complicated entrance, identify how an ambulance crew will gain access quickly.

Your plan should account for shifts and absences. A designated first aider may be on annual leave, working elsewhere or dealing with the emergency themselves. The wider team needs enough awareness to begin the response immediately.

Short scenario-based drills are useful. They reveal simple but serious problems: a cabinet key that cannot be found, a route blocked by stored stock, a first aider who does not know the post code, or a team that assumes someone else has called 999. Correcting these issues in a drill is far better than discovering them during a real cardiac arrest.

Check and maintain the equipment

An AED is only ready if it is maintained. Assign a named person, with a deputy, to carry out documented checks at suitable intervals. Many devices show a visible status indicator, but that does not remove the need for a proper routine.

Check that the AED is present, accessible and undamaged; the status light or screen indicates it is ready; pads and batteries are within their expiry dates; the rescue kit is complete; and cabinet alarms, heating or signage are working where fitted. Replace used pads promptly after any incident or training use. Follow the manufacturer’s instructions for every check and replacement.

It is also worth reviewing the device after changes to the workplace. A relocation, refurbishment, expansion, new shift pattern or change in visitor numbers can make a previously sensible location unsuitable. First aid needs assessments should be reviewed when circumstances change, not left untouched for years.

Make confidence part of your safety culture

A defibrillator is not a substitute for competent first aid provision, a first aid needs assessment or emergency planning. It is one vital part of a response designed to save lives. The strongest workplaces combine appropriate equipment with people who are prepared to use it.

For organisations across Merseyside, Lancashire, Cheshire and Greater Manchester, Training 2 U can deliver practical Basic Life Support and AED training at your workplace, led by experienced frontline professionals. The aim is straightforward: help your team respond with calm, capable action when every second counts.

The best time to test whether your AED arrangements work is not when someone collapses. Walk the route, check the device, practise the call and give your people the confidence to step forward. Someone’s life may depend on it.