In the early days of BC inflators, one of my rigs had a a screw-on fitting that screwed onto a tire schrader valve. I kept that LP hose to fill inner tube floats etc. I never had the need to fill an automobile tire but it would have worked fine. We frequently camped when scuba diving in Monterey and would use that inflator to help start the campfire. Probably not an OSHA/NFPA approved activity.