The smell will definitely be noticeable, but not to worry, there are a few simple things that you can do to mask it considering that there are only a few plants. You can get a carbon filter and put it on the end of the exhaust, this will cut back on odors. Also, you can simply go and purchase some odor absorbing gels and place them near the exhaust. Ona gel is always a safe bet. Hope your grow is going well!!