Whats The Verdict On Exhale C02 Bags?

i have asked 2 people bout these and one person said they are awesome, everyone needs them. and one person said waste of money. whats the census? would they be good if i am in a 4x8 tent running 2x1000w for flower? i can only get 4 bags as i am running low on funds. i dont think i need the bags, but one grower told me plants need to breath and Co2 is like air to them. well, i dont know if i would follow that theology, but i have not needed them in the past. but now im in a bigger tent and the temps are a tad bit higher with summer months coming. im debating giving them a go.

definatly wouldnt have any bad effects so might aswell get them and try it out? they will help with higher temp toleration too

well, i appreciate your input. however at $30 a pop, i need a tad bit more info. thank you none the less. that is my theory.

Another poster on the site claims to have had success blowing up a garbage bag with his breath and poking a hole in it.

Seems to last about a day.

yeah, i honestly hover above my plants about half the shit. doing work in the tent and what not breathing around the plants helps create such a small amount, it helps, but in such a small way im sure...