The Canadian Red Cross has worked with Snapchat on a way to use the platform’s AR features to give people crucial, life-saving instruction.

According to research from the International Liaison Committee on Resuscitation, seven out of ten cardiac arrests happen in front of bystanders, but less than 20% of those bystanders provide first aid, often due to a lack of knowledge or confidence. The Canadian Institutes of Health Research estimates that roughly 40,000 cardiac arrests happen outside of hospital settings in Canada annually.

To help address this, the Canadian Red Cross worked with social technology company Gospooky to create  an AR lens on Snapchat that walks users through the process of CPR, using true-to-life models. Though not meant to replace formal CPR training, it is meant to give enough education on the basic steps to increase bystander confidence and their willingness to act in a life-threatening situation. It also shows how important CPR training is, and drives users to get more information or to find a CPR course for themselves.

The experience is also meant to communicate the steps of CPR in a way that is more engaging than a typical instruction manual or guide, and also gets the instructions into the hands of younger Canadians: according to its own numbers, 80% of 13- to 24-year olds in Canada use Snapchat regularly.