help please

(35 points) A particular room ( 10ft12ft8ft height) has an emission of 1 mg/min of polybromodichlorbadstuff (PBDCB). The room is continuously ventilated at 2 air changes per hour. This is a workplace, and the acceptable 8 hour average concentration of PBDCB is 1g/m3. a) Is the predicted air concentration (assume steady state, complete mix) going to be acceptable or not? b) If not, then you are interested in purchasing a PBDCB destruction unit - what should the destruction rate (mg/min) of such unit be in order to keep the air concentration acceptable