AeroClean Technologies (NASDAQ:AERC – Get Rating) and CDTi Advanced Materials (OTCMKTS:CDTI – Get Rating) are both small-cap business services companies, but which is the better investment? We will compare the two businesses based on the strength of their earnings, institutional ownership, profitability, analyst recommendations, risk, valuation and dividends. Institutional and Insider Ownership 11.3% of AeroClean […]