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[Wo Yi purification] filter How to choose, what are the references?

Source：//wl132.cn Date：2012-3-29 15:51:59 Hits： Tags:

The filter used for different applications have different levels, based on the cleanliness of the air and water quality, the purity of the selection of filters and layout:

An air cleanliness 100 10 000 100 000 air purification, the beginning of efficiency, in effect, high efficiency filter should be used three filters. 300 000 air purification, can be sub-efficient filter instead of a high efficiency filter.

Two, the selection and arrangement of the air filter should be regulated, proper hand operation, meet the following requirements:

1, in effect, the air filter should focus set at positive pressure to clean up the air conditioning segment;

2, efficient or sub-efficiency air filters should be set in the end to clean up the air conditioning system;

3, in effect, high efficiency air filters should be less than or equal to the rated air volume selection.

For larger, higher air cleanliness, location, concentration, and silencer, vibration control requirements more stringent clean room should be a centralized air conditioning system, and vice versa, can be distributed air conditioning system.

Fourth, the air purification system of the following circumstances should be set separately: 

A unidirectional flow clean room and non-unidirectional flow clean room (area)

2, high efficiency air purification system in efficiency air purification system;

3, the running frequency or use time clean room (area).

, Following the production of air purification system should be independent of setting, should be separated by a certain distance between the air inlet of the air vents and other medicines of air purification system.

Penicillin strong allergenic drugs;

, Β-lactam structural class of drugs;

3, contraceptive drugs;

4, hormone drugs;

5, anti-tumor drugs;

Virulent microorganisms and Bacillus products;

7, radioactive drugs;

8, the operating area of the bacteria (viruses).

Six, following the air purification system air, still can not be treated to avoid cross-contamination, you should not recycle.

A solid material grinding, weighing, batching, mixing, system materials, tableting, coating, filling and other operations;

2, the granule of solid oral liquid preparations, finished drying equipment used to purify the air;

3, the organic solvent-refined raw material drug refined, dry processes;

4, the operating area of the pathogens;

5, radioactive drug production area;

6, the process to produce large amounts of harmful substances, volatile gas production processes