I have found that it helps me when I am cutting onions to wear swimming goggles. I also have to keep my mouth closed.
I keep a cheap pair of swimming goggles in the kitchen and wear them when chopping onions. No more tears!
Preventing Tears When Chopping Onions
Using Lemon Juice to Reduce Onion Tears
Side Dishes That Go With Quiche?
Using Frozen Raw Potatoes
Buying a Swimming Pool Vacuum?
Maintaining a Backyard Swimming Pool
Train iPhone FaceID to Recognize Your Face Mask