It's so handy having a respirator around. I originally got it for working with UV resin for my #3DPrinting, but it should really be a thing that everyone has around the house.
Any time I'm working with smelly chemicals around the house, e.g. making a repair with two-part epoxy I'll throw it on and be able to focus on the task at hand without the nagging worry that I'm breathing in literal cancer.