Abstract: The door seal kit is configured for use with a door. The door seal kit is a gas impermeable structure. The door seal kit forms a gas impermeable seal around the door. The gas impermeable seal prevents the exchange of gas from the atmosphere on the side of the door seal kit that is proximal to the door to the side of the door seal kit that is distal from the door. The door seal kit is used to contain gases, and their associated smells, within the room the door accesses. The door seal kit comprises a jamb frame and a sealing structure. The jamb frame attaches the sealing structure to the door jamb. The sealing structure forms the gas impermeable barrier around the door.