Electric fan once was an essential heatstroke prevention item in summer for many families. Though the number of families that use electric fans has somewhat decreased due to the popularity of the air conditioner, staying in an air conditioning room for too long can cause the immunity of our body to drop, some can easily catch cold, get a fever, contract allergic rhinitis and allergic asthma, and more. These are all because of the bad air quality caused by almost no circulations in an air conditioning room, which in turn multiples the cause of disease microorganism. Since electric fan Click here to read the rest of this article ...