Hi,
I have had my shelter in field service since February 2018. Have not had any issues with insect nests. A mesh should work fine for prevention, but would not use a black colored mesh? I do have a PURPLE AIR PA-II-SD and VOC sensor, an AIR QUALITY EGG PM2.5, PM10, CO2 AND O3 sensor and a DAVIS AIRLINK sensor all housed in the CRS. A little tight, I might add, but still can twirl my max thermometer to reset. I really wish I had about another three inches width for clearance. [ You are not allowed to view attachments ]