AED increases the chance of survival dramatically. According to lastest studies done (AHA) the average for survival from a cardiac arrest in near bystander can administer CPR and if there is access to an AED goes up to 40%.
Furthermore some studies show for those patient who recieved a shock from the AED are usually discharged from the hospital without significant impairment. The long term prognosis is similar to that of general public.
Access to an AED is essential for delivery of good resuscitation efforts. AEDs can can be safely used even by un-trained users as most quality AEDs are voice prompted these days and semi automated.
Uptake of AEDs in the community is really growing and many organisations, workplaces, schools, gyms, corporate companies, contractors and retail shops, tranining facilities and businesses are investing in a AED so their staff/people can have access to it. DefibillatorSales also offers a "Rent To Own" payment option which makes it very easy to pay off via weekly payments whilst ensuring you have on onsite right away.