The technology of providing cooling from fuel is invented by BROAD from scratch,which counters to the common sense. It has broken the monopoly of providing cooling from electricity and has been sold all over the world in just a few years. Why? Because we've digested the second law of thermodynamics: with each energy conversion, there is always energy loss. We understand electric aircons require five energy conversions to produce the cool air. They are fuel → thermal energy → mechanical energy → electric energy → mechanical energy → cold air. While BROAD directly provides cooling in one energy conversion, the energy efficiency is undoubtedly doubled. What's more, the separate heating technology invented by BROAD combines cooling, heating and hot water in one chiller, successfully eliminating the threat of boiler explosion accompanying electric aircon operation.

Several months after witnessing the paralysis of an entire building caused by an unexpected shutdown of central aircon, we invented a remote monitoring technology that collects information through telephone lines, and enables every non-electric aircon user to enjoy a 24/7 service. Today, when reviewing this invention developed 19 years ago in the era of "Internet+", we are surprised to find out that BROAD has made itself the pioneer of "Internet+".

In traditional central aircon system, the supply and distribution system of cooling water,chilled water and hot water consumes 1/3 of the whole system's energy. To correct this apparent unreasonable phenomenon, BROAD invented the packaged distribution system which saves an average of 3/4 energy consumption instantly. Meanwhile, the reliability of the distribution system has been improved to the same level as that of a chiller. This incredible energy saving miracle is indeed not mysterious, it's attributed to the zero-resistance filter and intelligent control technology BROAD has invented. The core is, we need the solutions of the 21st century to solve the problems of the 21st century, and that is, to replace "blind design" with industrial research, and to replace on-site construction with factory production.

It seems to be just a simple technical innovation to downsize the professional industrial detecting instruments for dust, CO₂ and electromagnetic radiation into a portable tool that is affordable and easy to use for common people. However, this invention has actually cultivated an ideological revolution - it ignited the "PM2.5" fever in China.Probably in the near future, when detecting environmental pollution personally becomes a daily habit for most people, humans will get rid of the expanding material desire and evolve into "the era of conscious living" from "the era of consumerism".

Perhaps nobody else in the world has ever thought of making the indoor air 100 times cleaner than that outdoors. However, BROAD made it possible in an affordable cost for common people. BROAD Clean Fresh Air Machine filters PM2.5 by 99.9%, and its ventilation power consumption is much lower than that of traditional products. Chinese people keep complaining about PM2.5, but the fact is, even people in developed countries also live in rooms with heavy PM2.5 and oxygen deficiency: indoor air pollution has become a common challenge for mankind. BROAD Clean Fresh Air Machine not only provides solution to the global challenge, but also recovers heat which drastically reduces aircon investment and operation cost. In extreme cold and hot areas, it can even operate at negative cost. A real human-oriented technology is the one that is affordable to common people.

Today, wearable technologies are everywhere, but we can rarely find what we really need, except the rechargeable, affordable and extremely light super air purifier - BROAD Mini Lung-Pro. It can filter PM2.5 by 99%, completely irradiate pollutants. It can also enlarge respiratory capacity, providing people with more comfort and energy.Although being small, the BROAD Mini Lung-Pro is the shelter in smoggy weather, the support for miners, construction workers and medical personnel for epidemic diseases,as well as the hope of survival for respiratory patients.