Why choose us

Our certificates

The company has passed ISO9001 quality system certification and continues to improve itself. It has invested a lot of resources and scientific management methods in research and development, management and other aspects.

Quality Assurance

All equipment is individually tested for safety performance in accordance with international standards.

Customer Service

Our customer service team is committed to providing exceptional support and addressing any concerns promptly. We prioritize clear communication and proactive problem-solving to ensure a seamless experience for every client.

 

 
Advantages of Using Fan Filter Units
 
01/

Modular and Customizable: Each filter and housing is an independent system mounted in a modular ceiling grid. FFUs are entirely customizable in size, flow rate, and filter options. When designing a cleanroom filtration system with FFUs, you have more flexibility to meet your classification, project, and budget requirements.

02/

Thorough and Efficient Cleanroom Filtration: Fan filter units are 99.99% efficient with HEPA filters. Or 99.9995% with ULPA, making them ideal for various sensitive applications. They also produce less noise than a large AHU.

03/

Easy to Modify: Fan filter units are ideal for projects that need room to grow. To meet increased cleanliness requirements, you can simply add more FFUs. With AHUs, this would require a certified contractor to reconfigure the system and run extra conduit.

04/

Easy to Maintain: FFUs also present an advantage during maintenance. Self-contained units can be accessed and replaced as needed without having to disable the entire system.

 

High Efficiency Filter with Partition

 

Parts of an Ahu Filter

Air intake – The AHU draws in outside air to be treated and distributed indoors once it has passed through the AHU's filters and cleaned.
AHU filter – The filter traps the particles and pollutants in the air, depending on the type of filter used and what is contaminating the air.
AHU fan – The fan pushes the clean air out of the AHU through the ventilation and air conditioning ducts to distribute the fresh, cleaned air into the building.
Heat Recovery System – This part allows to pre-heat fresh air in winter.
Cooling coil – This cools the air as it passes through the system.
Silencers – AHUs can be rather noisy, so silencers reduce the noise from loud elements of the AHU when it is operating.
Plenums – These boxes bring in, remove and distribute air.

 

Types of Air Handling Unit Filters

 

Panel Filters

Panel filters are flat, rectangular filters made from materials like fiberglass or synthetic media. They are commonly used as pre-filters to capture larger particles, such as dust and pollen before air passes through more advanced filters.

01

Bag Filters

Bag filters consist of a series of pockets made from synthetic or fiberglass media. They offer a greater surface area for efficient filtration of both large and small particles.

02

Pleated Filters

Pleated filters feature accordion-like folds that increase the surface area for filtration. They effectively capture medium-sized particles, commonly used in commercial HVAC systems.

03

HEPA Filters

HEPA filters are the industry standard in air filtration, with a 99.97% efficacy rate for capturing particles as small as 0.3 microns. They are vital in low-air-quality environments such as hospitals and laboratories.

04

Activated Carbon Filters

Activated carbon filters excel at adsorbing odors, gases, and VOCs. They're a go-to choice for enhancing indoor air quality in buildings by eliminating unpleasant smells and chemicals.

05

 

Maintenance of AHU Filters
1

Regular Inspection

AHU filters should be inspected regularly to ensure they are not clogged or damaged. In commercial settings, filters should be checked at least every 3-6 months.

2

Cleaning and Replacing Filters

Pre-filters and medium filters can often be cleaned or replaced depending on the type. However, HEPA and carbon filters typically need to be replaced rather than cleaned.

3

Monitoring Airflow

Reduced airflow is a sign that the filters may be clogged. Monitoring airflow regularly can help identify when filters need attention.

4

Professional Maintenance

For complex AHU systems, it's recommended to have HVAC professionals perform periodic maintenance to ensure the filters and entire system are functioning correctly.

 

FAQ

Q: How much filter is in AHU?

A: Inside an AHU we will typically find two sets of filters. The first set is known as the primary filters and we also then have the secondary filters. These both have different functions in an air handling unit.

Q: How to check AHU efficiency?

A: Start by measuring temperature and humidity at both inlet and outlet. Then measure the barometric pressure. You can then use temperature and barometric pressure to calculate air density. Then you multiply density by volume flow rate to determine mass flow.

Q: What is the leakage rate for AHU?

A: Maximum allowable air leakage shall be 1.0 percent of design airflow at 1.5 times scheduled total static pressure for the air-handling unit as installed. ii. Air-leak testing shall be performed by measuring the airflow pumped into (or out of) the unit at the cabinet design operating static pressure.

Q: How can i get the price?

A: We usually quote within 24 hours after we get your inquiry(Except weekend and holidays). If you are very urgent to get the price, please email us or contact us in other ways so that we can offer you a quote.

Q: Can I buy samples placing orders?

A: Yes.Please feel free to contact us.

Q: What is your lead time?

A: It depends on the order quantity and the season you place the order. Usually we can ship within 7-15 days for small quantity,and about 30 days for large quantity.

Q: What is your payment term?

A: T/T,Western Union,Alipay,MoneyGram,and Paypal.This is negotiable.

Q: What is the shipping method?

A: It could be shipped by sea,by air or by express(EMS,UPS,DHL,TNT,FEDEX and ect).Please confirm with us before placing orders.

As one of the leading ahu filter manufacturers and suppliers in China, we warmly welcome you to wholesale high quality ahu filter made in China here from our factory. Customized orders are welcome.

ahu filter, High Efficiency Filter, Primary Filter