Just opinion, a hyperbaric chamber is the opposite of a vacuum chamber. I puts more oxygen into a pressurized space. I've never used one, but I was told about it in scuba class. If co2 was used instead of o2, I don't know if that would help make a wax. CO2 extraction is used to rip the trichomes off physically and then filtered through a tight glass filter. A hyperbaric chamber wouldn't help any of that and would hinder the purging process. Just opinion.