Registered in Shanghai in 2003, Brown was one of the agents of the famous central fresh air brand Braun in the early days, and later engaged in the research and development and design of fresh air fans, and now has a certain reputation in the field of fresh air.
 
Brown currently launched a new fan only BGF one series, there are three models, all wall-mounted, BGF-280A price 3588 yuan, fresh air volume of 205m³/h, the filtration system is only two layers, fortunately, the H13 level HEPA filter is still used, and 280C is based on 280A to add a digital display, other functions remain the same, the overall configuration upgrade is limited, but the price has increased significantly to 5288 yuan, compared to BGF-280A is obviously more worth buying.
 
Another BGF-400A is positioned as a flagship product, the price is as high as 9999 yuan, the fresh air volume is upgraded to 455m³/h, the filtration system has also been significantly improved, from bottom to top are metal filters, medium filters, activated carbon layers, and of course, H13 level HEPA filters, with an unfolded area of 6 square meters, good haze removal performance, and the built-in ultraviolet lamp also has a certain sterilization function.
 
It should be reminded that all of Brown's new fans do not have a heat exchange function, and the electric auxiliary heat module is not equipped, so it is recommended that consumers living in colder areas in winter should be cautious.