This article focuses solely on central air purification systems, as opposed to wall-mounted air purification units.
Installation
Central Air Purification is not as simple as purchasing a main unit; the brand must carefully design the pipeline layout, material selection, and installation details based on the specific environment.
Therefore, it is crucial to choose products with strong brand power, otherwise, you may encounter unnecessary troubles in installation, usage, and after-sales service.
Major brands tend to have a stronger service awareness and are more experienced in construction, resulting in a lower likelihood of making mistakes.
2. Wind Turbine
The primary impact of wind turbines: air volume, energy consumption, and noise. Among these three indicators, if the air volume is not properly matched, it directly affects the user experience.
The residential air volume mainly includes 150m³/h, 250m³/h, and 350m³/h. Here is an approximate relationship between air volume and floor area, with a reference ceiling height of 2.5~3m for your reference.
3. Pipeline
The新风ducts are mainly available in two types: rigid PVC pipes and flexible PE hoses.
PVC rigid pipes are the current mainstream form of piping, offering a high cost-performance ratio; however, the airflow gradually diminishes the farther it is from the main unit.
PE hose solutions typically include a wind box, ensuring that the air volume is maintained at a stable level without diminishing. Moreover, the noise level of the hoses is relatively lower than that of rigid pipes. The drawback is that the cost is higher, and there are more holes to be made. High-quality fresh air systems often utilize hose designs.
In summary, the flexible hoses offer superior performance with reduced wind loss, albeit at a slightly higher cost, and are commonly found in high-end air purifiers like Panasonic. The rigid hoses have slightly inferior performance but are more cost-effective. Our company, when selecting an air purification system, leans towards flexible hose designs for the ductwork, ensuring a quieter home environment that doesn't disturb family rest.
4. Filtration Material
Like air purifiers, filters are the core component of fresh air systems, although the filters in fresh air systems are slightly different from those in air purifiers.
Air purifier filters typically include a pre-filter, carbon layer, and various proprietary additives in a fine-particle filtration layer, which not only purify PM2.5 but also remove formaldehyde, sanitize and sterilize, and filter out odors.
The新风 filter material primarily filters PM2.5.
Therefore, fresh air systems primarily employ physical filtration, typically using a combination of resins and special paper materials. During use, a replacement is required every three months.
There's also an electrostatic dust collector, which utilizes static electricity to attract and trap dust and powder. Its advantage is that it doesn't require frequent replacement; it can be rinsed and reused. However, the drawback is that it can produce ozone, and excessive ozone levels can cause coughing and skin allergies.
Some brands use pure physical filtration, others employ pure electrostatic boxes, and still others combine both methods. As for which is better, it depends on the specific needs of each household.
5. Heat Exchanger
Another core component of New Air is the heat exchanger, which operates primarily through two methods: full heat exchange and latent heat exchange.
The full heat exchange system, which is a system that exchanges energy within the air. This energy in the air includes sensible heat (i.e., temperature) and latent heat (i.e., humidity). Therefore, the full heat exchange system can achieve synchronized temperature and humidity exchange between indoor and outdoor air.
The sensible heat exchange system facilitates the exchange of air temperature, thereby achieving the transfer of temperature.
Due to the simultaneous exchange of temperature and humidity in the full heat exchange system, it can make the indoor air more adaptable to human needs, resulting in an enhanced experience. Consequently, the central air-to-air heat recovery system is more advantageous than the latent heat system.
Currently, full heat exchange technology is predominantly led by Panasonic of Japan, with most domestic central air products still utilizing latent heat exchange systems, and there remains a certain technical gap. Additionally, when making a purchase, be aware that many manufacturers only label heat exchange and may confuse the concepts of full heat and latent heat. It is recommended to read carefully or consult customer service.
