Free CPR training sessions were offered to travellers at London Stansted Airport.
The initiative, on October 16, was organised by Essex & Herts Air Ambulance (EHAAT) as part of National Restart a Heart Day.
The day, led by the Resuscitation Council, is a global initiative aimed at increasing the number of people surviving out-of-hospital cardiac arrests by equipping individuals with life-saving CPR skills.
From 7am to 7pm, travellers were taught essential steps to take when faced with a cardiac arrest by EHAAT's critical care paramedics, pre-hospital care doctors, charity team members, and volunteers.
Adam Carr, EHAAT's clinical community lead and critical care paramedic, said: "Restart a Heart Day is all about empowering as many people as possible to take action in an emergency.
"Our goal was to ensure that more people feel confident and prepared to help if someone experiences a cardiac arrest."
Anita Harrison, customer operations director at London Stansted, said: "We were delighted to support Essex & Herts Air Ambulance for their event at London Stansted to mark National Restart a Heart Day.
"Our commitment to passenger safety is of utmost importance, and by supporting EHAAT and raising awareness about CPR, we hope to make a significant impact in saving lives."
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here