Good advice. My first indoor grow was a strain that had a promising name, Bubblelicious. It sounded like it would smell sweet, like bubble gum. LOL was I off. When I put my girls into flower, I went into emergency mode, cutting a hole in the closet wall and installing a blow through fan to vent the closet into my bathroom and then outside.
If you are going to grow weed inside, you HAVE to have odor control on your list, or sooner or later, you will get popped. It's amazing all the strangers that start coming to your door when you have a grow going on. All of a sudden, I'm being bombarded by scouts, brownies, politicians, lawn care guys, etc... It seemed that before I grew indoors, I never had a visitor.... Go figure.
I keep a large jar of ONA GEL near my front door. If I am ordering pizza, or expecting someone over, I open the jar, place it on top of my tall display cabinet, and leave it. My grow is in a tent, with a carbon scrubber and a vortex on a controller. I have the smell contained, but I'm paranoid about odors. I also have an ozone generator and two ion fountains nearby. Better safe than sorry. If any cop was to be at my front door and stating they smell fresh marijuana, I'm going to call him a liar to his face and tell him to move along, nothing to see here.