I am the designated onion cutter in our family. The way I usually do it is to peel it and cut it in half. Then I run cold water over the halves to knock down the fumes. Sometimes it works and sometimes it doesn’t.
Celebrity cook Jack Scalfani recommends a certain way of cutting and peeling that allows you to avoid crying while chopping up your onions.
According to Chef, there is a core inside the onion that emits the gas that makes us cry. If you cut out the core first, there are no more tears. I have not tried it yet. have you? What happened?