The household family air-condition has its advantages, but he also exist in many not easy to ignore shortcomings. As is known to all, people have a long time to stay in air conditioning temperature control in a closed environment, easy to suffer from poor air quality caused by 'air conditioning syndrome', according to German meteorologists survey, people who work in air conditioning room for a long time, the person of 70% in 2 ~ 3 hours, feel tired, 60% people complain of easy cold, 50% of people in the circulation of the blood block and headache. Visible syndrome 'air conditioning' on people's work and the study has a very bad effect. Now according to the National Bureau of Statistics, the climate is hot in summer in suzhou, but not * hot, the air conditioning in suzhou penetration and climatic conditions make the air conditioning usage in suzhou has a qualitative representative, comprehensive suzhou weather conditions, residents can have different usage in air conditioning environment in their own time, you can think most people at least nearly 15 hours a day in the air conditioning environment, so as long as it is a closed environment, most easy to suffer from 'air conditioning syndrome'. Thus strictly, therefore, does not have in fresh air nourished function of air conditioning can't ensure the quality of the air, cannot guarantee human health, national health ministry has formulated the closed environment for this fresh air standard per capita, but if the open doors and Windows, or the way ordinary fan in fresh air, resulting in air conditioner cold ( Hot) Load increase, the temperature of the human body comfort, therefore, the development which has the function of fresh air for household air conditioner, but * * way to ensure indoor new wind force. Household fission air conditioning air introduction can basically solve the fission air conditioning caused by indoor air harmful gas concentration is high, dry, oxygen and other defects, better meet the health requirements, ensure the quality of air conditioning, safeguard human health, put an end to happen the air-condition disease.