An Ultra-Low Penetration Air filter (ULPA) is an air filter with extremely high filtration efficiency. It can remove particles of 0.1 micrometers and above in the air, with a filtration efficiency usually as high as 99.9995% or more. Compared with HEPA filters, ULPA filters can filter smaller particles, so they are used in environments requiring higher air cleanliness.
Ultra-High Efficiency Air Filter, whose full name is Ultra-Low Penetration Air filter (ULPA), has a filtration efficiency of over 99.995% for particles, smoke, microorganisms and other dust particles of 0.1~0.2μm.
ULPA ultra-high efficiency filter screen is an enhanced version of HEPA with further improved filtration effect. The filtration efficiency of ULPA for particles larger than 0.1 micrometers reaches more than 99.995%. Compared with HEPA, ULPA filter has a more compact filter material structure and higher filtration efficiency. Besides, ULPA filters have a larger filtration area and stronger dust holding capacity.
The filter element of ULPA ultra-high efficiency air filter is made of superfine glass fiber filter material folded with glue. The outer frame can be made of sandwich wood board, galvanized copper plate, stainless steel plate and aluminum alloy plate, which are tightly bonded with polyurethane glue. It is light in weight, large in air permeability, with a dust collection rate as high as 99.999%, and resistant to high temperature.
ULPA ultra-high efficiency air filters are suitable for 10,000-class to 100-class clean systems and air conditioning systems. Therefore, the products have been widely used in electronics, microelectronics, semiconductors, optical devices, biological and pharmaceutical circuits, cameras and optical instruments, precision machinery and other fields.
