That won't do anything for cigars. You can get a HEPA filter for the smoke, but it will still linger in carpets/upholstery, and kill your HEPA filter. Best way to go is exhaust through a window or vent.
Well, I have only seen a couple LGC in recent, post 2002 production...2008 on the #2 and 09 on the Tainos. #1 through #4 are all different degrees of slim.What country are you in--can better tailor advice on regional releases to that. Things to try that have just come out:-2011 Ramon Allones Allones Extra EL-H. Upmann Half CoronaFor further advice, tell us what size(e) and brands you've tried/like.