Specification:45ml/bottle No smoke,no fire,no ash,no poison strong and high effect Feature:1. Active ingredient: prallethtin above 0.8%2. Burning time: 45ml lasts 240 hours. ues every day for 8-10 hours,can use for a month, which is effective indoor to 18cbm.3. No smoke,no fire,no ash,no poison, can fully maintain human healthy and the environment clean.4. It has strong and high effect, with ...