a. Find the air flow rate that each dimuser diseharges in CrM a. You have two pesaiste selestians an the tabie given such as 1212 c.00 CFAf and 15X is (6as CFM). What is the noise invel in as in the spate when one 1212 ibthiser and ane 1515 aifhuser are inetarled? Use the following tabie to determine the noise level. b. What is the NC level in d8 when two 15 is (525 CFM) diffusers are installed in the space? c. Describe which size diffuser or their combination you should select. Select one of the following: 1. two 1515 diffusers 2. two 1212 diffusers 3. one 1212 diffuser + one 1515 ditfuser