RESUMO
Medium filtering efficiency and loading capacity have been evaluated using staphylococcus aureus aerosol,0.75?m NaCl aerosol and Ecoli.F2 phage aerosol,and the face fit factor of actual wearing has been tested under eight predefined activities.The results have shown that the filtration efficiencies of respirator for the three kinds of tested aerosol were above 99 percent,the breathing resistance was less than 250 Pa,and while the load reached 150mg,the breathing resistance of the respirator was still below standards.The fit factors of most of the objects were over the detection capacity of the international standard test set.Our mask offers the best biological protection quality of all the protection equipments in international market.The new biological protective respirator comes to the equal protection result of the half face mask.It can be stored in a flat surface construction form,while be used in the cavity construction style.It is convenient for the troops to be equipped and applied for its smaller physical volume and lighter weight.
RESUMO
Objective To evaluate the key role of development of medical and biological techniques correlating with medical protection against New Concept Weapons(NCWs) and put forward a development strategy in medical protection against NCWs. Methods Data on the present medical techniques protecting against NCWs were obtained by tracing references. On the basis of analyzing and studying the obtained data, an evaluation was made by consulting experts, system analysis, scientific selection, clustering analysis and policy analysis. Results The correlation coefficients correlation, indexes and scores in the present progress of 36 techniques were determined. Furthermore, the evaluation was made. Conclusion Different developing strategy should be taken in accordance with the important and the present research on medical and biological techniques correlating with medical protection against NCWs. This study will give us some advice on protecting against NCWs in medicine.