If co2 level gets increasing in the blood it favours
Answers
Carbon dioxide concentration increases in the blood whenever there is a general obstruction to normal rate of breathing, a change in the affinity of haemoglobin for oxygen, increased work by body tissues or even in certain cases of acidosis. But hey, dont worry about all that technical stuff. Your question is concerned with different types of ventilation (or breathing to put it very simply), so i will only be going into detail on that one.
As a general rule, the faster and deeper you breathe, the greater is the air exchange happening in your lungs. This means there is increase in the rate of oxygen uptake by blood and also of carbon dioxide wash-out. So if you breathe fast and deep, that will clear out maximum amount of carbon dioxide from your blood. Hence a decrease in blood CO2 concentration.
Similarly if you breathe in slow and deep, it will be less effective in washing-out CO2 from your blood. But this will still be more effective than slow and shallow breathing, because of the same reasons.
So grading all the three types with increasing CO2 concentration in blood, it will come out as:
Fast and deep breathing
Slow and deep breathing
Slow and shallow breathing
Fun fact: CO2 is a powerful vasodilator of blood vessels, especially in the brain. A vasodilator, by the way, is a substance or a chemical that, well, dilates the vessels, or makes them wider (an increase in diameter). A dilated vessel delivers more blood to the tissue than a constricted vessel. So whenever a tissue or an organ in the body is highly active, the vessels supplying that tissue or organ dilate so that increased amount of blood flows through it to provide adequate nutrition.
During fast and deep breathing (hyperventilation), CO2 concentration in blood decreases drastically. As mentioned above, CO2 is an important vasodilator for the blood vessels to the brain. So when its concentration decreases to very low levels, as happens during hyperventilation, the brain is not provided with adequate blood supply to keep functioning, and brain being a sensitive organ, is greatly affected by this. So within a few seconds of hyperventilation, the person starts feeling dizzy and might even become unconscious. You can try this out yourself, but do not hyperventilate for more than 15s-20s, as it can be harmful for your brain and might even lead to permanent damage