OK. I did extensive research on how CO2 can kill spider mites. I read that 10,000PPMs of CO2 will kill bugs and also read 50,000PPM is when it starts to be toxic for humans. Now I ran propane burners, reached 13,000PPM for 4 hours. All mites survived. Eggs hatch at 80 degrees, so yes also millions of eggs hatched. Now I sealed room even better. Ran CO2 at 20,000PPM+ for 14 hours!!!!!! ALL BUGS SURVIVED!!!!! AND ALL EGGS HATCHED!!!!! Now I am using the mite eradicator. Its Apple Cider Vinegar, lemon juice, baking soda and water. You spray on, let soak 20 minutes, then spritz off with fresh water. It is suppose to kill mites and dissolve eggs killing them too. It has done a number on the mites, the eggs are still everywhere but it did eliminate a good percentage of them.
SO yeah I read multiple threads on here about CO2 working, be warned.