Question: what is the difference between wet and forget indoor and outdoor?
Answer: Yes, you can use Wet & Forget Indoor on smaller hard, non-porous surfaces outdoors that are prone to mold and mildew growth. ... For larger areas or for porous or more delicate surfaces, we recommend using Wet & Forget Outdoor, which works over time with the wind and rain to kill mold and mildew and inhibit re-growth.