Orchestra Sci. is developing BLUEMEM, membranes for selective CO2 separation: removal and purification. The selectivity process is high, even at atmospheric pressure, eliminating the need for a compression system and its associated costs. This is the first economically viable technology that avoids CO2 emissions; the emitted CO2 is captured, purified and returned to the market as a new product. For biogas upgrading, operation costs can be reduced by up to 25%.