1. reduce air conditioning usage. Home is where the air conditioner should turn on air conditioner sparingly, such as opening for the summer should also feel very open air in temperatures enough by open air at 25° c is enough, but if you are a person who does not turn air conditioner off, changed during the first 1-2 hours before sleep it. Set time turn off the air conditioner, and don't forget to explore all the Windows and doors in the bedroom space vulnerabilities before. This just saves it and then fire?
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