New Grower grow room carbon filter advice

[d7reu]

Grow room for 1 plant:
50x50x110 (cm)
CFL Lights
4" PC fan in
4" PC fan out

I need advice on the carbon filter. I found these 2 on eBay.

4" In Line Fan, Carbon Filter & Duct Kit - Hydroponic Grow Room Tent Ventilation | eBay

4" In Line Fan, Carbon Filter & Duct Kit - Hydroponic Grow Room Tent Ventilation | eBay

 

[namvet25]

4" In Line Fan, Carbon Filter & Duct Kit - Hydroponic Grow Room Tent Ventilation | eBay This one looks the best of the two.