Blast resistance is the ability of a material or structure to withstand pressure from an explosion. Since 'blast-proof' would mean that the material is entirely immune to damage from an explosion (one example would be concrete), it’s not a term commonly used when discussing windows and doors. Instead, we use the term 'blast-resistant.' There are varying levels of blast resistance, so make sure you know how blast-resistant your windows are. You can learn more about DefenseLite’s blast resistance standards here.