Now we use the technologies of the desalination of the ED,getting rid of the suspending materials with the highly efficient surface membrane filter and killing the bacteria of ozone to reform circulating cooling water system of the ammonia plant .

Design of sodium flame detection system of 50 m~2 high efficiency filter;

Experiment on germ filtering efficiency of high efficiency filters on return air inlet in isolation wards;

Based on the analysis of onsite leak detective method for high efficiency filter,the provisions in the relevant code were discussed.

Experimental research on atmospheric dust leakage of HEPA filters,part 5 of the series of research practice of the national standard task group for the Code for cleanroom construction and acceptance test;

Analysis on the Test Methods for Air Velocity of HEPA Filter

The effect of killing airborne microorganism was studied using HEPA filter heated by far infrared radiation.

A detailed performance comparison has been made between the photocatalytic oxidation reactor and the carbon adsorption/high efficiency particulate arresting filters for airliner cabin.

Discussion on Leakage Test Method of Exhaust HEPA in Biosafety Laboratories;

QUALITY CONTROL OF IN PLACE TEST OF HEPA FILTER AND IODINE ADSORBER IN DAYA BAY NPP;

In order to solving the problem,this paper changed the grille panel to perforated panel and maximized HEPA\'s area.