How is benzaldehyde different from formaldehyde?

Benzaldehyde has a benzene ring where formaldehyde has a hydrogen atom. (C6H5CHO as opposed to HCHO). Formaldehyde is used as a biocide and a disinfectant. It is a nasty substance and may be a carcinogen. Benzaldehyde on the other hand is used as a food additive to give an almond flavour.