Humidity and Heat

A customer has a question and I hope we can get some opinions on it, thanks.

"Hey and need help with humidity and heat from my grow room
this is my 3 grow im doing now but still very new in it.
from germination to harvest my heat is allways in 24-25 celsius to max 28 celcius i have trying all i now and reading to fix it without progress, and my humidity is in 40%-50%. in the begining and when the plant grow it geting higher what to do plz help me

PS: my writing in english is bad

i have putt in some links here to show you my grow/grow room setup is in swedish but what is not google translation
if you dont understand say what then and itry to explane beter and mor

https://www.professionalgrow.se/sv/homebox-evolution-q80
https://www.prylstaden.se/sun-led-vaxtbelysning-300w-100x3w
https://www.professionalgrow.se/sv/flakt-tt-100 —for carbonfilter
https://www.professionalgrow.se/sv/vko-flakt-125mm
https://www.professionalgrow.se/sv/hy-filter-kolfilter-125mm-400mh