Co2 q?

I seen on youtube you can make one of those co2 2-liter and i wanna know if i hook that up to a fan and in my grow closet in my room if im going to be ok or if its ok to have in my room

no it wont kill you or harm the plants. it will never fill the room with co2.

not really enough for a big grow room, but Ive been using a gallon container making CO2 with a plastic tube running right to the base of my two plants.

another quick q can anyone help me buy a air purifier or recommend me so that my whole house wont smell like dank and burn me out.