Fresh Wave Crystal Gel Natural Odor Eliminator 64 oz. Refill Safe to use around people and pets. This is a 64 oz container to refill your 8 or 16 oz Crystal Gel dispensers. Fresh Wave Crystal Gel eliminates tough odors like musty rooms, smoke and fish. Works around the clock for approximately 60 to 90 days. Just open a jar to deodorize any room or area - such as a basement or bathroom. Works quickly and effectively without the use of perfumes or masking agents.