For sure, I'd never put the block in the tent, heard stories of it tainting the bud.
And you are right, I'm going to increase the air pressure (especially when I flower the tknl5haze). It was more when I leave the tent open to water that the smell was drifting. I have to be very careful with smells where I am so I'm thinking of adding another filter and fan in the 2x4 to really belt and brace it.
Thanks for the reply.