Litter box area still smells after cleaning

I have a stainless steel litter box inside a cabinet in a cat tree. It has a opening on the side so my cat can go inside.

I use Boxiepro deep clean, and i recently bought Dr.elsey's blue bag and Arm and Hammer clump and seal.

I clean EVERYDAY. Wipe down, vaccumm/sweep ans scoop once daily.. but the area still smells like a litter box. Also its next to 2 small windows that I open for airflow on a daily basis. I cant live like this, the smell actually is starting to bother me, if anyone can give me tips PLEASE.

ALSO, i feed her Nulo dry food with sheba kitten wet food. Its what she likes and hasnt caused any problems.