Lucas Gath

Hi everyone, I am a beginning DP shooting a dream sequence that mixes imagination with a person's past. For that reason I thought of using a Tobacco Filter + a Pro Mist filter. Yet, I am a starting DP and I am sure that there are a million things about doing this that I don't know of, right? How many stops do I loose with each filter? Opinions? Do you guys think it will work? any feedback will be greatly appreciated. Regards, Lucas