Merkhav Mugan () is a reinforced security room offering protection against high impact projectiles and chemical weapons, required in all new buildings by Israeli law. A Merkhav Mugan can either be part of an individual apartment, or service parts of or an entire residential, office or other building. It is deemed preferable to a public bomb shelter, known as a "miklat" (), when the warning time is too short for residents to reach a shelter, which may be located some distance away.
Security rooms are based on a 1951 civil defense law that has undergone several revisions. After Israel was attacked by Scud missiles in the Gulf War, the Israeli Home Front Command established new guidelines for civil defense. In 1992, technical specifications were drawn up for designated protected spaces in family homes. The Merkhav Mugan can withstand blast and shrapnel from conventional weapons, and offers protection against chemical and biological weapons. It has reinforced concrete walls and ceilings, thick floors, and airtight steel doors and windows.
Beyond its functional and legal requirements, the Mamad has become an integral part of the Israeli cultural landscape and domestic life. Unlike the Swiss model of civil defenseâÂÂwhich primarily relies on communal below-ground sheltersâÂÂthe Israeli approach focuses on bringing protection into the private living space of the individual. This unique concept reflects a foundational Zionist ethos articulated by Israel's first Prime Minister, David Ben-Gurion: "The whole nation is an army; the whole land is a front".
While providing a vital sense of security, the Mamad presents distinct daily challenges. Due to its reinforced concrete structure and heavy steel fixtures, these rooms often suffer from poor cellular and Wi-Fi reception, as well as significant temperature regulation issues. Despite these architectural drawbacks, the Mamad is viewed by Israeli citizens as a "concrete sanctuary" that has successfully shifted from the neglected public miklat (shelter) of the pre-1990s era to a central, life-saving component of the modern Israeli home.