Minipleat panel filters are filters with an increased filtration surface for separating fine dust fractions, offered in exact filtration classes, used in installations with increased air purity requirements. Minipleat panel filters have a filter medium other than pleated filters and can, therefore, be offered in higher purity classes. These filters are characterized by high mechanical strength and durability. The filter construction is based on a galvanized steel frame with a minipleat filter insert with a compact and durable structure made of glass filter paper connected with hotmelt bonding.