A breathing filter system for a vaporizer system includes a connector comprising a first portion comprising a conduit manifold comprising having lumens; a second portion comprising an interface plug comprising a plug end; an external surface comprising ribs and grooves, the second portion further comprising openings in communication with the lumens of the conduits, each lumen communicating with a single opening, the openings being arranged in the grooves; and, a breathing filter system assembly comprising a housing comprising a first section including a first port, a second section including a second port, providing a bi-directional flow path between the ports; a gas reflection device, and a heat and moisture exchanging breathing filter, disposed in the housing across the fluid flow path, the breathing filter arranged in the first section, and the gas reflection device arranged in the second section; wherein the housing is in communication with the first portion.