What is true about Class 5 oxidizing substances in terms of safety?

Class 5 oxidizing substances are known for their ability to support combustion, which is why careful handling is essential when working with them. These substances can enhance the flammability of other materials by supplying oxygen, which can lead to an increased risk of fire or explosion under certain conditions. This characteristic necessitates strict safety protocols to ensure they are stored and transported properly, and that appropriate protective measures are taken during handling. Understanding this aspect of oxidizing agents is crucial for maintaining safety in environments where they are present. The other options do not accurately represent the nature of Class 5 oxidizing substances and neglect the inherent risks involved with their properties.