Source containment may be used to address relatively small areas of mold growth, or in combination with other engineering controls to reduce the amount of spores released and dust generated. Source containment may be used alone when fungal growth is limited to small, visible, controllable areas where no hidden mold growth is anticipated. In areas where there is limited visible mold, and hidden mold growth is anticipated, a more extensive containment is recommended. Source containment methods may also be used within areas of more extensive mold growth in conjunction with other forms of containment. Examples of source containment methods include: taping polyethylene sheeting or using self-adhering plastic on the moldy surface or material before removing; and wrapping, bagging, and securely enclosing moldy contents or materials in 6-mil poly or comparable packaging.