Hi and welcome to the forum! You’ve met some of our shadier characters (JK) and getting solid advice.
For a new grower there are a ton of things to consider and I’ll try to cover them:
Carbon filter is not needed until flower. High humidity will kill the carbon inside so be judicious about using it.
You do need cross ventilation so an open vent is necessary. I bought a 6" stovepipe elbow and spray-painted the inside black. Put on one of the floor vents and vent from opposite corner, top. You can vent into your room or vent outside; your preference.
Soil is critical to growing good cannabis. FF Ocean Forest is a good place to start but some care needs to be taken for new plants going into it. A nutrient-free starting soil like Daisy Seed Starting Mix is wise as seedlings need nothing but water air and light for the first two weeks or so.
Recommend you purchase fabric pots to grow in; depending on size a 5 or 7 gallon is plenty for soil grows.
Growing in containers it is inevitable that you will be adding nutrients in flower. There are a HUGE number of nutrient lines and really that’s up to you.
As a result of needing to add nutrients, a decent digital PH and TDS meter are really necessary tools. Apera is a good place to start if buying on Amazon.
No idea of your water quality but it may be wise to get a municipal water report to determine if you have chlorine or chloramines in your muni water supply. If on a well it’s good to know the salt content of water (TDS meter) and cannabis needs to be watered at a PH between 6.3 and 6.8 for soil.
I would strongly suggest you attach yourself to a seasoned grower’s grow journal and pester them with questions. Here are a few growers doing great stuff: @Hellraiser @Covertgrower @MattyBear @Not2SureYet @ashhhh and a ton more. Here’s my journal if you want to peruse it although I’m a media grower (soilless):
As you read and comment on topics your ‘Trust Level’ with the forum engine will go up and you’ll get some badges as you progress. Use the @ sign to tag folks: it’s the best way to get traffic on your journal. I also strongly suggest you read the Forum Policy: