Microorganisms that grows best with high levels of carbon dioxide in addition to low levels of oxygen. (Microbiology with Disease by Taxonomy, 2nd ed., Robert Bauman)
Capnophiles are microorganisms that thrive in environments with high levels of carbon dioxide (CO2). These organisms have adapted to utilize CO2 as a source of energy or require it for their growth and survival. Some examples of capnophiles include certain types of bacteria and archaea.
capnophiles
capnophiles
Capnophiles, which enjoy CO2
3-10% concentration of carbon dioxide