Are industrial defoamers toxic

In the rapid development trend of industrial production, there are many uses of defoamers, and many friends are concerned about the toxicity of defoamers. So, is industrial defoamers toxic?
It is understood that industrial defoamers can generally be divided into two categories, namely water-based defoamers and oil-based defoamers. Water based defoamers are mainly used in water systems, while oil-based defoamers are mainly used in various oil-water systems. However, regardless of which type of industrial defoamer is produced by a legitimate manufacturer, it is non-toxic. In fact, the chemical properties of defoamer industry are very stable, non corrosive, non-toxic, non flammable and explosive, and have high safety.