Mortein NaturGard Multi-Insect Automatic fly spray Refill Fragrance Free 152g, provides continuous and automatic protection from insects both indoors and outdoors, and contains a natural plant-based pyrethrin active*. Control crawling and flying insects using an active extracted from the pyrethrum daisy, the natural enemy of insects, in combination with synthetic active ingredients. Mortein NaturGard Multi-Insect Automatic insect spray Refill Fragrance Free 152g provides continuous and automatic protection from insects including mosquitoes, releasing regular bursts of mist to help keep your home protected from insects. - Protects a sheltered outdoor area of 25m2 - Each refill lasts for 30 days indoors or 30 hours outdoors on the lowest setting - Fragrance-free *Also contains 4.6% synthetic actives.