co2, is it really worth it, and how much does it help?

you should not vent outside if possable if your temp and humidity are ok. you can plumb discharge air from fan and filter back into grow. the three chambers are rooms one is for all air mixing co2, cooling ect. the others are veg and bloom, they are sucking mixed air in and discharging spent back into mixing room 24/7 no smell must put your face on bud to smell when filter is clean .so in my case i have alot of heat to buffer and ac unit runs alot my kw use is high but the end result the ability to control enviormernt is the main reason i have good yeild its not my skills as a grower i get my diapers changed by expirenced growers many times dont waist co2 or electricity its funny that i get elec. made w/coal that emits co2 and i make c02 but im also certified solar energy person if we could just grow outside and stop all this silly electric sun shine silliness

great, thanks for the info. I have a generator for co2 so i wouldn;t e wasting much by dmping it everynow and then but i'd still like to conserve as much as possible