I put on an old pair of coveralls, gloves, hat, hood, respirator, old shoes, goggles. I covered the doorway to the room with plastic and setup a fan for ventilation and pre-heated the bottles. Even with all that I was miserable. I was hot and sweaty, had trouble breathing, and couldn’t see out of the goggles. My arms were tired and the foam mixture wasn’t always mixing properly and ended up wasting a lot of the mixture. It was still pretty expensive and time consuming… not sure I would do it again.