Theory, technique, measurement and equipment on pollution control of indoor
particles (including microorganism) has been an important research area of Center
for Cleaning Air Conditioning Technology from Institute of Building Environment
and Energy at China Academy of Building Research (the former Air Cleaning
Studio from Institute of HAVC at China Academy of Building Research), where the
author worked and has been responsible for more than fifty years. The research in
this field has been strengthened especially after the epidemic of “SARS” (Severe
Acute Respiratory Syndrome). Many concepts have been proposed, which includes
the corresponding theory and measurement of dynamic isolation (which is different
from the past static isolation), the concept for preventing the entrance of dust
particles and microbes into the room or the system (which is equivalent to the
ideology for preventing the enemy from entering into the gate of the country), the
concept of preventing and removing bacteria instead of killing bacteria, the combination of sealing and inducing, and the concept of sealing with dynamic air flow.
A large amount of work related to the control for the process of microbial pollution
has been performed by author, our research group in the air cleaning studio, and
related organization and hospitals in Beijing. A series of patents (including international patents and national patents including these granted from USA) and
products have been developed, including magnetic-type ultra-low resistance and
high-medium efficiency air filter, effective air exhaust device sealed with dynamic
air current, leakage-free exhaust air grille, outdoor air cleaning unit with
self-cleaning function, energy-saving and anti-bacterial air conditioning, and safe
exhaust apparatus with online leakage scanning. Related standard in Beijing has
been manipulated.