Exposure to specific air pollutants has been demonstrated to induce damage in the brain. However, these studies ignore the effects of a combination of contaminants, and there is a high likelihood that people will be exposed to a mixture of contaminants in daily life. Our previous study showed that co-exposure to formaldehyde (FA) and PM2.5 induced damage in the mouse brain at the safe exposure level for FA or PM2.5 exposure alone, and that oxidative stress and inflammation may be involved in the toxicity mechanisms. A universal strategy to prot...