There is no single universal number that applies to every building, but a practical formula helps estimate genuine coverage needs based on your specific site.
Start With Walking Distance, Not Floor Area
As covered in our buyer's guide, a reasonable rule of thumb aims for no point in a building to be more than roughly a minute's walk from the nearest device.
Factor In Vertical Distance Too
Multi-floor buildings generally need at least one device per floor, since waiting for an elevator adds meaningful delay during an emergency.
Consider Foot Traffic and Risk Concentration
Higher-traffic areas like gyms, cafeterias or main lobbies may justify additional coverage beyond the basic distance formula alone.
Use a Site Walkthrough to Confirm the Estimate
A physical walkthrough, timing actual walking distance between proposed locations, often reveals gaps a floor plan alone doesn't show.
Get a Genuine Coverage Assessment
We're happy to assess your specific building and recommend an appropriate device count. Explore our Consultation service or get in touch.
Get a Genuine Coverage Assessment
Heart First Response supplies, installs, maintains and trains organizations on AEDs across Dubai, United Arab Emirates and the wider Gulf region. Call us on +971 52 1746500 or visit heartfirstaed.com to get started.
