The Blisma indoor mosquito diffuser is safe and affective to use | This indoor mosquito repeller diffuser is made with all-natural, plant-based ingredients | Non-toxic and DEET-free | It uses a tested and validated essential oil combination | Instant and effective and continues to be effective for up to 10 weeks | 1-2 jars for coverage up to 100 to 200 square metres, 3-6 jars for coverage up to 350 square metres | Long-lasting, easy to set up, and environmentally friendly | Safe for the whole family |This product is sold individually. For PACK quantities, please order in multiples of 12.