Which is better for residential window fresh air system?

The following brands of residential windows and fresh air systems are very good, I hope it will help you.

Panasonic is one of the largest manufacturers of electronic products in the world. After several generations of efforts, it has become a world-renowned international comprehensive electronic technology enterprise group. Panasonic's products are famous in many fields, such as home appliances, digital audio-visual electronics, office supplies, aviation and so on. Panasonic products mainly focus on digital audio-visual, small household appliances, office products, household appliances and professional equipment in special fields. At present, Panasonic has more than 70 kinds of civilian products, such as electric toothbrushes and razors, as well as radio and television equipment, such as plasma TV, LCD TV, digital rear projection, flat-panel TV, digital video camera, DVD burner, desktop DVD, portable DVD, mini speaker and video recorder. Panasonic is also proud of its patent number and strong independent development ability, and the utilization rate of its own components in household appliances is as high as 80-90%. Panasonic acquired Sanyo Electric, becoming the largest motor manufacturer in Japan and the second largest in the world (second only to General Electric).

Sende Company was founded in Switzerland on 1895, and has a development history of 120 years. Headquartered in Switzerland and listed in Zurich, Sende Holding Group has R&D, production and sales service organizations (factories) in more than 20 countries and regions around the world, including Germany, France, Italy, the United States and China (Beijing and Shanghai). The service scope covers heating, refrigeration, fresh air, cleanliness, centralized control and other fields. Sende company is the research and development and promotion of steel column radiator, and still maintains the leading position in the world high-grade radiator industry. Sende radiator has won the praise and trust of users all over the world for its exquisite appearance, excellent technology, flexible and timely supply and professional and thoughtful service. Sunde HVAC Equipment Co., Ltd. (factory) is a factory wholly owned by Sunde (China) Company, covering an area of more than 200,000 square meters and a construction area of 60,000 square meters. Sende's advanced production lines, such as spraying, automatic welding and CNC machine tools, have been introduced, with an annual output of more than 7 million radiators and 65,438+million ground source heat pumps and new fans, leading the scale and technical peak of the HVAC industry in China.

Vortex Ventilation System (Changzhou) Co., Ltd. was established on 20 13, which is a wholly-owned subsidiary invested by Italian Vortex Vichy Group in China, and is the Asia-Pacific headquarters. Vortex Ventilation System (Changzhou) Co., Ltd. has advanced office buildings and factory facilities. As the executive director of China Fresh Air Industry Alliance, Vortex Ventilation System (Changzhou) Co., Ltd. will provide comprehensive and optimized indoor air solutions for China market, constantly create a pure, fresh, efficient and energy-saving indoor environment for China families, and start a new mode of comfortable experience. The company mainly sells product series: 1, central fresh air system-bidirectional flow series; 2. Negative pressure fresh air system-unidirectional flow &; Pipeline fan series; 3. Household exhaust fan series; 4. Sanitary ware series; 5. Air Treatment Series-Air Purifier &; Dehumidifier; 6. Heating series; 7. Commercial ventilator series; 8, industrial ventilator series.