Bring 2 cups water to a boil. Add brine mix and stir until dissolved. Pour over ice in a flat bottomed resealable container. Add chicken, then add additional water until chicken is submerged. Brine for at least 5 hours or up to 12 hours.
Remove chicken from brine and rinse with cold water. Pat dry on a paper towel, then pound down the thicker end of the chicken breast until they are even thickness across.
Rub the chicken with 1 tsp olive oil until evenly coated. Season with salt, pepper, chili powder, and Oh My Spice! seasoning.
Air fry the chicken at 380 degrees for 11 minutes, flipping halfway through (sometimes I up the temp to 390 degrees after flipping the chicken for crispier edges). Set aside to cool for about 5 mintes before slicing.
Add hummus to reusable dressing containers (3 tbsp each).
Add sliced chicken and hummus to the large section of the container, then add celery and carrots to one of the smaller sections, and finally add the grapes to the remaining section.