The Qinghe Mosquito Repeller is best hung in the window and during a few dozen seconds the center will be sprayed, which will deter mosquitoes and "block" access to our apartment. There is a knob on the housing that will remind you to replace the repellent with a new one. After hanging, just turn the knob for the current month.
Mosquito repellent mosquito is enough for 100 days, this is the time in which the agent (pyrethrin) will be gradually released. After 100 days, you should need a new device.
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