Spider mites get indoor stuff too. I had them one time and learned a real hard lesson.

Now, I spray outside the house, the intakes for the grow room air, the floor in the grow room, the air ducts to the grow room. I didn't get them this year and they were so bad they were killing my neighbors boxwood shrubs!!!!!

Oh, I also sprayed with Neem weekly during the spider mite season.

Yep, me too, I mess with trying to improve production and stress plants. Nature and good soil.