Shanghai Marya
ISO 4-9 Modular Cleanroom Quick Assembled HEPA Air Filter for Pharmaceutical/Laboratory
HEPA (High Efficiency Particulate Air) is a filtration system that is used to extract contaminants or particulates from the air in a cleanroom. When installed, it will contribute greatly to maintaining or increasing air cleanliness levels.
What differentiates HEPA filters from other types of filters is how effective it is at filtering small particles from the air (as small as 0.3 microns).
For a filter to be categorised as HEPA, it must be tested and proven to be able to trap up to 99.97% of particulates that are 0.3 microns in size or larger. Even though this is the standard, many HEPA filters can in fact capture particulates that are less than 0.3 microns in size, but 0.3 microns is the minimum that the HEPA filter must be capable of.
The high-efficiency/ultra-high-efficiency separator filter adopts a separator-type design, and the corrugated separator can accurately maintain the distance between the pleats, and maximize the use of the filter material with the least resistance. 180 pleats on both sides of the filter material are folded into a wedge-shaped pleat layer. When the filter material is bent, there are two indentations to make it form a wedge-shaped box pleated layer at the end of the partition. The wedge-shaped box pleated layer can be Prevent damage to the filter material.
Each of them is tested by flame method, which has the characteristics of high filtration efficiency, low resistance and large dust capacity. the high efficiency air filter can be widely used in optical electronics, LCD liquid crystal manufacturing, biomedicine, precision instruments, beverage food, PCB printing and other industries dust-free purification workshop air-conditioning terminal air supply. High efficiency and ultra-high efficiency filters are used in the end of clean room, which can be divided into: partition high efficiency filter, no partition high efficiency filter, large air volume high efficiency filter, ultra-high efficiency filter and so on.
There's also the HEPA which is a localised clean air solution. It is adaptable, economical, and efficient. It operates by maintaining quality of air at points where products are exposed, thus removing the need for a cleanroom to enclose the entire production line.
Product Characteristics
1) Frame: aluminum alloy or galvanized iron and stainless steel frame;
2) Filter material: ultra-fine glass fiber paper;
3) Separation material: rubber paper or aluminum foil;
4) EN779 level: H10, H11, H12, H13, H14;
5) DIN 53438 flame retardant standard: F1;
6) Final resistance: (recommended) 450Pa;
7) Maximum air volume: 125% of the rated air volume;
8) Temperature resistance: 80ºC;
9) Filter size: According to the actual requirements of the customer, the reference thickness of the aluminum profile; 120mm, 150mm, 220mm, 295mm;
HEPA Filter Working Principle
Product Parameters
| Product name |
High Efficiency Aluminium Frame Air Pleat HEPA Filter for Pharmaceutical Cleanroom |
| Classification |
EN779: H10,H11,H12,H13,H14 |
| Dimensions (mm) |
665*670*230 |
| Colour |
Silver (Customized) |
| Structure |
Aluminum or Iron Frame and Cardboard Seperator |
| Special Properties |
Deep V-Pleats Provide Large Media Surface Area for More Effective Filtration |
| Final resistance |
450 Pa |
| Packaging |
Customized |
| Standard |
ISO14644 |
Maintaining of HEPA (High Efficiency Particulate Air)
If the air filter in a cleanroom is malfunctioning, the risk of your critical environment being contaminated is high and can lead to disruption of critical processes and product quality.
Filter integrity testing or Dispersed Oil Particulate (DOP) testing is an assessment executed to verify the integrity and performance of an installed High Efficiency Particulate Air (HEPA) filter. The whole filter face will be assessed during the DOP test to verify there are no leaks or other inefficiencies capable of compromising integrity of the cleanroom. Our filter integrity testing is in line with ISO 14644-3:2005 With regularly scheduled filter maintenance, you can avoid the risk of prolonged and unexpected downtime that can negatively affect the operations of your organisation.
HEPA filters can be expensive and time consuming to replace. But the need for regular replacements can be minimised with diligent maintenance of the filtration system. With maintenance, a typical minimum HEPA filter replacement schedule for a clean room could be once every three years.
But bear in mind that frequency of changes can be influenced by factors such as a cleanroom being in proximity to a construction site, proximity to freeways, fog or other climate-related conditions that may place an extra burden on the operation of the filtration device. You can schedule regular check-ups and maintenance of your HEPA filtration system with our experienced and competent Total Clean Air engineers.
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