Compact Fluorescent Lightbulbs: What to do if one breaks

Compact fluorescent lightbulbs (CFLs) contain a small amount of mercury sealed within their glass tubing.
Fragrances

Some fragrance chemicals may be harmful, particularly to children and to individuals who are sensitive to them. They may trigger itchy or watery eyes, worsening of asthma symptoms and other breathing problems, headaches or other acute effects.