It fixes the climate in our house.
Removing CO2 from a conditioned space (for people) is a desirable ‘air quality’ benefit anyway, regardless of the ‘climate change’ CO2 hoax. I believe submarine scrubbers have to do this. However, it’s impracticable to add this capacity to HVAC equipment that would increase their installation and operation costs drastically yet would make only the most infinitesimal changes to the overall atmosphere, even if every machine out there had this capacity.
Yeah. Totally helps change the climate from hot and sticky to cool and dry.
Except that globally, there reported already is a CO2 shortage. To achieve maximum plant growth (read Food Production) CO2 levels should be higher than they currently are.