All out liquid vaporizer 90 nights refill keeps you and your family safe from mosquito and insect bites. It lasts for 90 nights based on an average 7 to 8 hours of usage. Made from premium quality ingredients, it is highly effective and at the same time safe for your family. Make sure to keep it away from children. It will last for a long time and is effective for protection against mosquitoes transmitting diseases like malaria, dengue and chikungunya.