NI-712 eliminates the worst odors in 3.5 seconds! Even skunk odors disappear in seconds. Super-concentrated; one or two sweeping sprays keeps an average 10’x10′ room odor-free for up to eight hours. Unlike most “grocery store” air fresheners, NI-712 actually eliminates odor, it doesn’t just cover it up. This powerful air neutralizer will solve your toughest odor elimination challenges.