A perforated container (e.g., a box) filled with a mosquito-repelling substance (e.g., in gel form) that vaporizes to ward off mosquitoes from the immediate environment (outdoors or in enclosed areas such as rooms, tents, or vehicles). It typically includes mosquito olfactory-sensitive ingredients such as tea tree, laurel leaf, and lemon grass oils. It is available [non-prescription] over-the-counter (OTC) and is a reusable device.