Did you know most reed diffusers simply mask bad odours by having a stronger fragrance than the bad odour? This masking only works for a limited period and then the bad odour will return. Cristalinas Pet Diffuser has a patented formula that will eliminate bad odours from the environment. A special molecule contained within the essential oils recognises air born bacteria (the bad odour) released from pets. This molecule will in simple terms, surround the bad odour preventing it from binding to odour receptors in your nose and eliminate it from the environment altogether. Made with Natural Extracts, Essential Oils and 0% Alcohol, it\'s safe to be around your pet and will keep your home smelling fresher for a minimum of 4 weeks.