Canadian-origin nanoengineered structured adsorbent filters (structured adsorbent beds) for post-combustion industrial CO2 and direct air capture. Company: unique solid sorbents; metal-organic frameworks (MOFs); filters made to be recycled; no toxic liquid chemicals. CBSA 8421.39 other filtering or purifying machinery for gases (industrial gas cleaning / gas separation). Filter media in a frame or cartridge stays in 84.21 per D10-14-43. Not 8421.32 engine catalytic converters.