• Hydrogen peroxide (H2O2) is a strong oxidizer and causes skin and eye irritation when in contact. Hydrogen peroxide can also decompose violently if contaminated or stored improperly. • Manganese dioxide (MnO2), lead dioxide (PbO2), and iron(II) oxide (Fe2O3) are relatively safe in small quantities but can pose health risks if inhaled or ingested in large amounts. • The danger of Hydrogen Peroxide decomposing too fast can make it explosive, since H2O2 rapidly decomposes at extremely high temperatures, the temperature of the H2O2 will need to be constantly regulated. • Hydrogen Peroxide is deadly to ingest and inhale. The boiling point of H2O2 is around 150°C.