Complex sentence: Air ambulance bases (in Budaörs, Balatonfüred, Sármellék, Pécs, Szentes, Debrecen, Miskolc) cover all over Hungary, helicopters reach 85% of the country's territory at the very latest 15 minutes.
Split into simpler sentences: Air ambulance bases (in Budaörs, Balatonfüred, Sármellék, Pécs, Szentes, Debrecen, Miskolc) cover the whole country. Helicopters can reach 85% of the country's territory at the very latest 15 minutes.