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05 Nov

Why do we need a cleanroom?

Why do we need a cleanroom? The Cleanroom The purpose of every cleanroom is to control an environment by limiting the presence of sub-micron particles and modifying inadequate environmental conditions. The level to which the environment is controlled is what separates one cleanroom from another. For instance, a Class 10 cleanroom has 10 particles of size 0.5 microns per cubic foot of air, where as a Class 100,000 clean room has 100,000 particles of size 0.5 micron per cubic foot of [...]

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03 Nov

Air Filter’s Air Flow Rates In Different Cleanliness

Air Filter’s Air Flow Rates In Different Cleanliness For detailed information on Air Flow Rates, contact a HAOAIR specialists to get specific answers to your project. Class per ISO 14644 (Old FS 209 e) Average Airflow (Across Entire Room) Air Changes (per hour) ISO 8 (Class 100,000) 0.005 – 0.041 m/sec (1 – 8 ft/min) 5 – 48 ISO 7 (Class 10,000) 0.051 – 0.076 m/sec (10 – 15 ft/min) 60 – 90 ISO 6 (Class 1,000) 0.127 – 0.203 m/sec (25 – 40 ft/min) 150 – 240 ISO 5 (Class 100) 0.203 – 0.406 m/sec (40 – 80 ft/min) 240 – 480 ISO 4 [...]

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29 Oct

ULPA Filters Introduction of HaoAir Tech

ULPA Filters Introduction of HaoAir Tech ULPA stands for Ultra Low Particulate Air. Growing market demand from advanced science and technology led to development of ULPA filters which provide a minimum of 99.999% efficiency (0.001% maximum penetration) on 0.3 micron particles for achieving better cleanliness classes and cleaner working environments. These are used for ultracleanrooms, where contamination levels have to be controlled at levels better than that which can be achieved with conventional HEPA filters. Boron free ULPA filters of 99.9997% [...]

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26 Oct

HEPA Filters Instruction Of HaoAir Tech

HEPA Filters Instruction Of HaoAir Tech HEPA filters stands for High Efficiency Particulate Air. The HEPA filters work on diffusion principle to remove particulate matter. And are extremely important for maintaining contamination control. These filter particles as small as 0.3 µm (microns) with a 99.97% minimum particle-collective efficiency. This is remarkable considering that the outside air we breathe may contain up to 5 million suspended particles of dust, smog, and pollen in one cubic foot. These filters typically use glass fiber [...]

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16 Oct

What differentiates cleanroom HVAC to conventional systems?

What differentiates cleanroom HVAC to conventional systems? Cleanroom HVAC design encompasses much more than conventional temperature and humidity control. Typical office building air contains from 500,000 to 1,000,000 particles (0.5 microns or larger) per cubic foot of air. A Class 100 clean room is designed to never allow more than 100 particles (0.5 microns or larger) per cubic foot of air. Class 1000 and Class 10,000 clean rooms are designed to limit particles to 1000 and 10,000 respectively. A clean [...]

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14 Oct

Personal Protective Equipment In Clean Room

Personal Protective Equipment In Clean Room Various tasks in the cleanroom carry various requirements for using personal protective equipment. The purpose of these rules is not to hinder your work but to keep you and those around you safe. Proper PPE will greatly reduce the risk of an injury should you or someone around you cause a 29 chemical accident. Each chemical bench has specific PPE requirements for anyone working there. These requirements also apply to someone observing work at [...]

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08 Oct

General Clean room Regulations For Clean Room

General Clean room Regulations Below is a list of general clean room regulations recommended as a minimum for the successful operation of a cleanroom. All professional cleaning personnel should be aware and follow these regulations at all times. Regulations All personal items such as keys, watches, rings, matches, lighters and cigarettes should be stored in the personal locker outside the gowning room. Valuable personal Items such as wallets may be permitted in the cleanroom provided they are NEVER removed from beneath the cleanroom [...]

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22 Sep

Air shower pass through box introduction

Air shower pass through box Introduction The air shower pass through box is designed according to the type of the clean room air shower . And it is also called purification transfer box, air-shower transfer cabinet or air-shower pass box. In order to reduce the large amount of dust particles caused by goods entering and leaving ,the fan quickly blows the air out through the Initial and High Efficiency Filters and turns it into clean air. The clean air is [...]

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15 Sep

Introduction of Vertical Blowing Air Shower Room

Vertical Blowing Air Shower Room Introduction Vertical Blowing Air Shower Room At present, the air shower room on the market is blowing by the left and right sides of the air shower nozzle, but this kind of blowing method is particularly prone to cause turbulence or eddy current, which does not achieve a good dust removal effect, but it is also very easy to bring the dust blown up into the clean room, and can not achieve a good cleaning effect. Vertical [...]

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05 Sep

A Basic Introduction of Clean Rooms

Clean rooms is a controlled environment where products are manufactured. It is a room in which controlls the concentration of airborne particles to specified limits. Eliminating sub-micron airborne contamination is really a process of control. These contaminants generates by people, process, facilities and equipment. They must remove continually  from the air. The level to which these particles need to remove depends upon the standards required. The most frequently used standard is the Federal Standard 209E. The 209E is a document [...]

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