Liquid Refill 45 Ml 60 Nights of Zanzarella is an anti-mosquito liquid refill. It offers protection to the home environments for 60 nights. It is effective against common mosquitoes and the tiger mosquito It is recommended to insert Zanzarella Refill Liquid in the appropriate electric diffuser and connect it to a suitable power outlet. Put the eIectro-diffuser into operation and keep it on for the period in which its action is necessary. After use, turn off the appliance without removing the liquid refill; the device is thus ready for subsequent use. The product remains active for 480 hours. If used continuously, the product remains active for 20 days. Close with the appropriate cap if the refill is detached from the electric diffuser.