Baygon Electric liquid Effective effectively repels mosquitoes and those try to enter, provides up to 30 nights (8 hours continuous night) of per protection against mosquitoes. Stable-Baygon high quality wick make the actives volatilize evenly and constantly. Convenient-No need to change refill everyday. 'Baygon' Electric Liquid is suitable for rooms up to 12ftx 12ft, and can be used for both bedrooms and living rooms etc when follows instruction.