Modular filter system, housing frame part of a modular filter system, filter module and housing module

A modular filter system for cleaning of gaseous fluid, comprising:

• at least one housing module with at least one support in which at least one filter element is arranged, the at least one filter element having a dirty side and a clean side;
• and
• at least one duct for the gaseous fluid arranged on the clean side of the at least one filter element;
• wherein the at least one housing module includes
• at least one housing frame part;
• wherein said at least one housing frame part includes
• at least one duct section, the at least one duct section forming the at least one duct or duct part;
• wherein the at least one housing frame part can optionally be applied in the housing module such, that the at least one support section of the at least one housing frame part is be part of or forms at least one support and/or the at least one duct section is a part of or forms at least one duct;
• wherein the at least one housing frame part is a rectangular half shell having a U-shaped profile, each housing frame part of the at least one housing frame part having:
• a center section of the housing frame part;
• a first side section forming a first leg of the U-shaped profile, the first leg having an end connected to an first end of end of the center section;
• a second side section forming a second leg of the U-shaped profile, the second leg connected at an end to an opposite second end of the center section, the center section spacing the first leg apart from the second leg;
• wherein the center section together with the first section and the second section form the U-shaped profile;
• wherein a side of the housing frame part opposite the center section is open such that the first and second legs are connected to the housing frame part at only one end of each leg, an opposite end of the first and second legs being free;
• wherein the housing frame part comprises at least one support section formed on the center section of the housing frame part, the housing frame part comprises at least one support section comprising a through opening extending through the center section of the housing frame part;
• wherein the at least one support section configured to support the filter element in the housing frame part when the filter element is inserted into the through opening.