I have this same unit, I’ve used it everyday for 3+ years and it still works well. Keep the filters clear to prevent ice up. Good price point!
This appears to be a one hose unit. Only buy two hose. One hose units draw hot outside air into the whole house.
You are correct. Hot Humid air.
Only use TWO (DUAL) Hose units. Not single hose.
You will be sorry if you do.