Firestop collar

A firestop apparatus, comprising:

• a frame comprising at least two metal frame parts configured to removably couple to one another, and
• an intumescent material having a rectangular shape,
• wherein the intumescent material is configured to be disposed in an interior space of the frame between the at least two metal frame parts,
• wherein the intumescent material has at least two side edges and at least one opening between the at least two side edges, the at least one opening configured to receive a pipe, cable, or of line through the interior space of the frame,
• wherein the at least two metal frame parts each comprise a right-angle bend which is suitable as a corner part of the frame,
• wherein the at least two metal frame parts each comprise one or more fastening brackets, each configured to fasten the firestop apparatus to a wall with a screw,
• wherein the at least two metal frame parts each comprise a front part configured to partially overlap the interior space of the frame in an axial direction,
• wherein the frame has an opening between the front parts,
• wherein the opening between the front parts is larger than the at least one opening in the intumescent material in at least one dimension,
• wherein a first metal frame part of the at least two metal frame parts has a slot, and
• wherein a second metal frame part of the at least two metal frame parts has a protrusion configured to form a first connector with the slot of the first metal frame part, wherein the first connector is capable of at least partly removably connecting the first metal frame part and the second metal frame part.