Help setting up budget grow ventilation.

[Lionhead]

Hey guys, basically I have a 2ftx2ftx4ft tent I'm gonna put in my bedroom, with a mars hydro ts 600 led panel and I'm gonna grow 1 maybe 2 autos in it at a time, probably 1.

Because i don't want to spend the earth and make a basic set up work for me i want to work with a passive intake and just use a small exhaust fan up top. Given that it's my bedroom and I'm sensitive to sound as it is I don't want to be hearing the fan if possible so I thought either find a 50 cfm or get a 100cfm and a cheap controller and turn it down by 50 percent

This is the tent, the 60x60x120 version:https://www.ebay.co.uk/itm/223979124303

I have my eye on a kenley but dont know if it's any good:https://hydroponics247.co.uk/shop/kenley-4-inch-silent-inline-extractor-duct-fan-for-hydroponics-grow-room-tent-bathroom-kitchen-100m3h/

At a real stretch could I even jam a 4 inch desk fan from Amazon in the hole or even go without a fan all together and just air it out every day or leave all the ducts etc open minus the door and rely on passive air circulation?

Also cheap quiet exhaust fans that would fit my tent are welcome .

 

[Lionhead]

I should say I have been growing in a really bootleg cardboard box and household led bulbs micro grow with only pc fan exhaust hooked up to usb and have had some success but I want a better light and space hence the upgrade

 

[cardgenius]

I’d just go with some 4” USB box fans. AC/Infinity makes really good ones. They even have a controller you can buy for them so you can control the temp quite easily.

 

[coreywebster]

Hey guys, basically I have a 2ftx2ftx4ft tent I'm gonna put in my bedroom, with a mars hydro ts 600 led panel and I'm gonna grow 1 maybe 2 autos in it at a time, probably 1.

Because i don't want to spend the earth and make a basic set up work for me i want to work with a passive intake and just use a small exhaust fan up top. Given that it's my bedroom and I'm sensitive to sound as it is I don't want to be hearing the fan if possible so I thought either find a 50 cfm or get a 100cfm and a cheap controller and turn it down by 50 percent

This is the tent, the 60x60x120 version:https://www.ebay.co.uk/itm/223979124303

I have my eye on a kenley but dont know if it's any good:https://hydroponics247.co.uk/shop/kenley-4-inch-silent-inline-extractor-duct-fan-for-hydroponics-grow-room-tent-bathroom-kitchen-100m3h/

At a real stretch could I even jam a 4 inch desk fan from Amazon in the hole or even go without a fan all together and just air it out every day or leave all the ducts etc open minus the door and rely on passive air circulation?

Also cheap quiet exhaust fans that would fit my tent are welcome .

First off do not waste your money on that kenley fan, it will not move air through even the smallest duct and certainly wont pull through a filter.
I bought one a while back to take the air out of my drying cabinet and it would not even blow a rizla never mind suck through anything.

Secondly your going to hear your fans, even if you go with the quietest fans there are you will hear airflow and a low hum tone.
You certainly not going to be able to go quiet on a budget.

If you want a quiet fan you can go with a ac infinity with speed controller and turn it down, rated at 30db ish.
Or you can search on ebay for fans I have "silenced box fan"

4inch 100mm 4" Acoustic Box SILENT Extractor Fan Low Noise In Line Duct Fan 5060548960735 | eBay

Not only can the acoustic fans move a large amount of air, they are very quiet running. 100mm Acoustic Box Fan. Virtually silent operation when used with the appropriate sized acoustic ducting. The Acoustic fans are also lightweight and more compact than other acoustic to fit into the smallest...

www.ebay.co.uk

Those are around 21 db but ifyou want to control the speed you will have to buy a variac for the least noise.

Those fans are so quiet I have to check they are on and even a few pc fans which I use for under canopy airflow are louder.
I also recommend a few pc fans for airflow in a small space when noise is an issue.

The reality is there is no silent grow when you do it properly.