Formaldehyde is a true gas and has many properties which make it a highly effective sterilizing agent. Being a true gas, formaldehyde has excellent distribution properties and will completely fill any area it is injected into. However, to be effective, formaldehyde requires long contact times (on the order of 6-12 hours) and the gas requires a post-exposure neutralization step after the contact time is completed. This neutralization step leaves residuals which must be cleaned after the decontamination. Formaldehyde is also a known carcinogen.
The Principles of Effective Decontamination are the underlying fundamentals which must be achieved in order to ensure a successful decontamination cycle and apply to all decontaminating agents. Each agent’s chemical and physical properties will affect the extent to which these principles are met and will influence the overall effectiveness of the decontamination cycle. Environmental factors will influence these properties and will play an important role in the effectiveness of your agent.