When we are enjoying the coolness from the air conditioners, many people always feel tired and have headaches and even soreness in the joints. Such "air condition syndrome" does not occur occasionally. It deeply relates to the operation details of the air conditioners. Here are three key points demonstrated from scientific research with their applicable solutions.   I. Temperature setting: Pursuing a "sudden cold sensation" may harm the body.   Misconception: Lowering the temperature blindly. Many of us set a temperature of 22℃ or even lower, which we think could quickly decrease the temperature. In fact, when the temperature difference exceeds 8-10°C between indoor and outdoor environments, our blood vessels will contract violently due to sudden temperature changes. It will block the blood circulation and cause symptoms like headache and muscle stiffness.   Solution: Set a temperature of 26-28°C in summer: This temperature period could ensure comfort, reduce the burden on the compressor, and cut down 30%+ energy consumption. Set a temperature of 20-22°C in winter: With the EA heating function, it could avoid excessive drying. Set an ECO (sleeping) mode during the night: According to the human body temperature rhythm, the air conditioning units could increase 1-2 °C automatically to reduce stimulation.   II. Airflow direction: Invisible damage caused by direct cold air blowing.   Misconception: Wind blowing directly at people. Being exposed to the direct cold air blowing for a long time, the temperature of partial skin could suddenly reduce 5-7 ℃, which could lead to lower back pain, shoulder periarthritis, and other issues. What's worse, cold air would stimulate the respiratory mucosa, decreasing our immunity.   Optimization: Air outlet faces upward when cooling: Utilizing the sinking feature of the cold air to form a natural circulation, it could increase 40% cooling efficiency compared with blowing directly. Air outlet faces downward when heating: The hot air could rise quickly to cover the whole room. Adopt a fan: A fan assists the airflow in a low-speed mode, reducing 2-3°C of the body temperature and 15 % of the air conditioner's energy consumption.   III. Air quality: the “hypoxia trap” in confined spaces.   Hidden danger: the vicious cycle of continuous closed windows. Experiments have shown that after being sealed for 3 hours in an air-conditioned room, the concentration of carbon dioxide can reach 1500 ppm (normal value of 400 ppm), and the decrease in oxygen content leads to drowsiness and decreased attention. What's even more dangerous is that the dust and mold accumulated on the air conditioning filter can cause respiratory diseases.   Coping strategy Open the window in the first 10 minutes when air conditioning. This is to exhaust the remaining pollutants inside of the machine. Ventilate for 15 minutes every 3 hours: This will help reduce the carbon dioxide concentration through air convection. Place a basin with water or a humidifier in the air-conditioned room: this will keep indoor humidity at 40%-60%, reducing dry eyes and itchy skin.   Advanced improving solutions Installation height calibration: The installation height should be 1.7 meters to avoid direct cold wind blowing on the head or feet. Deep cleaning of filter: Cleaning the filter every month can improve cooling efficiency by 20% and reduce bacterial growth by more than 50%. New air conditioning technology: Some new air conditioners use an external circulation ventilation system to bring fresh outdoor air into the room, effectively improving the indoor air quality and achieving an energy-saving effect of about 40%, taking into account both health and environmental protection.   Write in the end To use an air conditioner properly, we should balance these three main factors: temperature, airflow, and air quality. Next time, before we use the air conditioner, we may adjust the wind direction, set a fundamental temperature of 26°C, and open the window regularly for ventilation. Those changes to the details could not only relieve our tiredness but also cut down 20%-30% of electricity bills. Please note: True coolness should not come at the expense of your health.   Appendix: Self inspection Form for Air Conditioning Usage ✅ Is the temperature set in the range of 26-28℃? ✅ Is the air outlet away from direct airflow to the human body? ✅ Is the ventilation done every 3 hours? ✅ Is the filter cleaned? ✅ Is it used with a fan?

Standing air conditioner inverter is normally more expensive than non-inverter ones; whether it is worth purchasing depends on your demands and places. Let's analyze it from several aspects and see if this investment is worth doing.   1. Why is inverter floor standing air conditioner more expensive than normal ones？ Well, the key difference between inverter and non-inverter air conditioners is the working method of the compressor. Inverter AC: By adjusting the rotating speed of the compressor, it could control temperature precisely, reducing energy consumption. Non-inverter AC: The compressor has only two modes, on and off, which leads to high starting power, large temperature fluctuation, and high energy consumption. Floor standing air conditioners have high power consumption themselves. With inverter technology, the price will be absolutely higher, but the advantages it brings are obvious.   2. Whether it is worth buying an inverter floor standing air conditioner, we can check from the following points. Suggested crowd and scenario Large spaces: Living rooms, conference offices, and stores. Floor standing air conditioners are suitable for large areas, and with inverter technology, it could improve the comfort and the energy-saving effect. Long-time usage: Homes and offices that use air conditioners all day long. Inverter air conditioners could save more energy when operating for a long time. People who pursue comfort: They request air conditioners with stable temperature and low noise, avoiding sudden cold and heat.   Unsuitable crowd and scenario Small space: Rooms within 10 ㎡. Floor standing air conditioner is to big to place in such a small area, which may lead to a waste of resources. Short-time usage: Use it for 1-2 hours per day only. Under such condition, the advantage of inverter energy saving is not obvious, and the payback is slow. Tighten budget: If we have a limited budget, then a non-inverter AC with smart socket would also save some energy.     3. Key comparisons between inverter and non-inverter floor standing air conditioners. Items Inverter standing air conditioner Non-inverter standing air conditioner Price Expensive. Cheap. Energy consumption Saving electricity, long-term usage will be cost-effective. Consuming more power, making it suitable for short-term usage. Comfort Constant temperature, low noise. Large temperature fluctuation, loud noise. Lifespan Longer lifespan compressor. Frequent start-up affects the compressor lifespan. Maintenance More complex technology, higher maintenance costs. Easy maintenance, low cost.   If we use the air conditioner frequently and with a large room, then we choose inverter type. If we need it cheaper and use it seldom, then we'd better choose the non-inverter type.   4. Floor standing air conditioner with inverter can save energy; will it truly bring payback to us? Let's take 3 horse power inverter and non-inverter floor standing air conditioners as an example: Power consumption (8 h/day): inverter ac 1.8 kW on average. Power consumption (8 h/day): non-inverter ac 2.5 kW on average. During a summer (90 days on average), it saves 63 kW (2.5*90-1.8*90) of electricity. Then we can calculate how much the money it saves in a summer. After several years, the saved costs could cover the additional money that we had paid on the inverter air conditioner. If we truly use the air conditioner often, then the inverter type can definitely pay back and save more money.     5. Purchasing tips on inverter floor standing air conditioners. Focus on "Full DC Inverter". Compressor, fan, and motors—all parts are inverter, and the energy saving effect will be much better. Focus on "Energy Efficiency Label". Class I is the most effective. Focus on "Brand and After-sales". Famous brands from the USA, Japan, Korea, China, etc. Focus on “Additional Features".  Dehumidification, air purification, smart WIFI control, etc.   6. Should we buy it? So, if we use air conditioners very often (longer time and larger space), an inverter floor mounted air conditioner is worth purchasing, which is energy-saving and comfortable. But if we use it for a short time at home and our budget is limited, then a normal non-inverter air conditioner is also considerable. It costs less. However, in a long period, the electricity bill will be higher.

Central air conditioner or split air conditioner, it is a common topic in home decoration. Both have their own advantages and disadvantages and are suitable for different needs and scenarios. The following is a comparison from many aspects:   1. Room size   Central air conditioner It is applicable to large houses, villas, and commercial spaces. It can cover multiple rooms and is suitable for large areas that require unified temperature control. It is concealed for installation and suitable for families pursuing high-end decoration effects.   Split air conditioner Applicable to small and medium-sized houses, with each room installed independently. Each air conditioner is controlled independently, suitable for use scenarios with personalized needs. The initial installation cost is low, suitable for users with limited budgets.     2. Cooling/Heating Capacity   Central air conditioner High power, suitable for multiple rooms at the same time. Even cooling/heating, small temperature fluctuation, high comfort.   Split air conditioner Good cooling/heating effect for a single room, fast startup. Suitable for single-room use, but low energy efficiency when multiple air conditioners are used at the same time.   3. Installation and Space Requirements   Central air conditioner The installation is complex and requires advance planning in conjunction with the decoration (such as ceiling design). Hidden installation, high aesthetics, but high requirements for the building height (about 25-30 cm reserved).   Split air conditioner Easy to install, each room is designed independently. It does not affect the structure of the house, but multiple external units may affect the appearance of the exterior wall.     4. Energy and Operation Cost   Central air conditioner High energy efficiency, especially variable frequency models, are more energy-efficient when used in multiple rooms at the same time. The initial installation cost is high, but the energy consumption is economical in long-term use.   Split air conditioner The energy consumption of a single unit is low, but the overall energy efficiency is low when multiple units are running at the same time. The initial installation cost is low, but the long-term operating cost is high.   5. Appearance and decoration matching   Central air conditioner Hidden design, integrated with the overall decoration, high aesthetics. Suitable for modern simple and high-end decoration styles.   Split air conditioner The appearance is visible (wall-mounted AC, floor standing AC), which may affect the overall decoration style. The new model has a strong sense of design and can meet some decoration needs.   6. Noise   Central air conditioner The main unit is placed outdoors, and the operating noise is low. The indoor air supply is quiet, suitable for users who are sensitive to noise.   Split air conditioner There is noise in both indoor and outdoor units, especially in old models. The quiet performance of high-end split models is gradually improving.   7. Initial cost and maintenance   Central air conditioner The initial installation cost is high (usually 30,000-100,000￥, depending on the size of the apartment). The later maintenance cost is high (such as cleaning pipes and maintaining the main unit).   Split air conditioner The initial cost of a single unit is low (about 2,000-15,000￥/unit), and the total cost depends on the number of rooms. Easy to maintain, and a single unit failure does not affect the use of other rooms.     8. Comprehensive Pros and Cons    Type  Central air conditioner  Split air conditioner  Pros  High power, wide cooling range, suitable for  large rooms  Affordable, space-saving, suitable for small rooms  Cons  Large floor space, high price and energy consumption items  Limited cooling range, low power   9. Suitable Crowd and Scenario Advice   Central air conditioner Suitable for large houses and families who focus on beautiful decoration and comfort. Suitable for scenarios where multiple rooms and multiple users are used at the same time, such as villas, offices, etc.   Split air conditioner Suitable for users in small houses or single rooms. Suitable for scenarios with limited budget or short-term use, such as renting a house.   10. Suggestions If the budget is sufficient and the decoration effect is high, choose a central air conditioner. If you pursue economy and practicality and the house area is not large, choose a split air conditioner. The choice between the two mainly depends on the house area, budget, decoration plan, and usage requirements.   We are professional air conditioner manufacturer with 30+ years experience; if you have a specific room type or budget requirement, please tell us, and we can further recommend a suitable solution for you!