I have heard these are not good for you. My grow box will be in a bedroom upstairs. The door will always be closed but my family all sleeps in the other bedrooms upstairs. I saw the "air ball" and thought it would be better than a big carbon exhaust scrubber. What is the best way to go for odor control in this situation. I will have 4-6 smelly plants. Neighbors are close by and I need good odor control.