A new filter type HEPA - Mini pleat is released
17 May 2009
The modern technologies such as electronics, information technologies, also pharmaceutics are getting more and more sophisticated and therefor setting harder requirements to the air purifying systems. And thus they involve the improvement of the air filter systems which results in enhancement of the purity grade in the working environment. For that purpose a use of fibre structured media is intiated. A specific property of that media is restraining particles larger then 1 micron and it results in the high efficiency of the filtering process. Such kind of media named „glass fibre media“ and used in HEPA or also as known as „mini-pleat“ filters is able to restrain even aerosol particles. But they have enough free space so the air can pass through. The filtering efficiency and the pressure drop (air resistance) are mainly experimentally established. HEPA-filter means the english abbreviation HIGH EFFICIENCY PARTICULATE AIR FILTER and is very popular in the area of the filtration and separation technology applied where the „technological hygiene“ is extremely needed. There is a variaty of HEPA-filter constuctions but their operating principle is uniform and the main differences among the models refer to their dimentions and mechanical design. They depend on the concurrent place where to be used on and each producer has to decide how to implement the relevant requirements. The mean guidelines consist of dimensions and wheight reduction by means of "pleating process" application. That will allow the so called filters with metal separators to be fully replaced by the more convenient pleated media filters which being much lighter and more compact.
Here are some essential advantages:
- filter pack without metal separators;
- reduced weight and better compactness;
- enhanced aerodinamic and dust-catching properties and consequently enhanced air purification;
- possibility for „embedding“ antibacterial features.
1 - pleated glass fibre media
2 - hotmelt seams