I've used https://www.amazon.com/gp/product/B00I13WJJS, https://www.amazon.com/gp/product/B00R6FZVXI/, and https://www.amazon.com/gp/product/B007Q2KGJA when grooming my dogs.

They provide some degree of relief (fur, slobber, and larger particles stay out of your nose & mouth) but aren't a total solution. There's no airtight seal, and they're not rated to catch everything. They're easy enough to breathe through, but air tends to leak out the top and fog up glasses. There are options with much better filtration (e.g. this one claims HEPA filtration) but I haven't tried them myself.