Applications
It widely used to hospital operation room, laboratory, pharmaceutical room, electronics, optical fiber equipment and food processing factory etc.
About Us
GUANGZHOU KLC CLEANTECH CO., LTD., as a leading supplier of air filters and cleanroom equipment, is committed to providing excellent solutions for clean and fresh air.

28+

YEARS OF EXPERIENCE

  Hong Kong Kingland Investment Limited has been committed to advancing air purification technology and delivering exceptional products and services to customers worldwide since its inception. Leveraging Hong Kong's strategic position as an international financial and commercial center, we are able to efficiently integrate global resources, expand into international markets, and establish close partnerships around the world.   Since 1994 when KLC was built, we have been dedicated to the research and development of air purification products. We have invested a large amount of funding and technology to ensure that our customers can enjoy the latest high-quality products and the most professional additional services. Since the 21st century, KLC has expanded its reach to every corner of the world, accumulating extensive experience and application knowledge in order to provide more comprehensive products and services. KLC was the first enterprise in the purifying field to pass the ISO14001 and ISO9001 certifications. We possess top-ranking clean workshops and production lines, as well as advanced air filter equipment. As one of the leading manufacturers in researching, designing, and producing products related to clean rooms, our products and production technologies have obtained dozens of national patents. Now, we have garnered support from many leading enterprises across various fields and countries. With our "Globalization thinking" business philosophy, KLC products are spreading throughout Asia, Europe, and America. No matter where you are, we are always by your side.   In Mainland China, we have established an advanced production base that focuses on the research, development, production, and sales of air purification products. This production base is an integral part of our global layout, ensuring that we can continue to deliver high-quality products and services to customers worldwide.   THE HISTORY OF KLC 2005﹎﹎﹎At the beginning of establishment, KLC committed to the construction projects in the area of air conditioning, refrigeration, ventilation, air treatment, dust-free workshop, etc, focusing on China's emerging markets for future high-tech manufacturing industry, which has provided a solid foundation for industrial clean room area in technology, management and services. 2006﹎﹎﹎KLC registered our own trademarks, transferred air purification manufacturing market from scattered hand-made workshop to factory integration production. In the same year, KLC became China's first batch company in the air purification field to pass the SGS ISO9001 and SGS ISO14001 certification, these criteria for quality and environment management have built a solid basic for KLC's management and development. KLC also won the "National Quality Credit Enterprise" in 2006. 2007﹎﹎﹎KLC sales channel developed into diversified stage, began foreign trade, undertook a large number of overseas orders, reached cooperation with numbers of well-known domestic and foreign enterprises. In the same year, KLC products quality reached to a higher level, highly praised by domestic and foreign partners, and won the " Enterprise of Good Creditworthiness " award. 2009﹎﹎﹎KLC' worked with more than 3,000 end-users, and established one of few 10,000 clean class clean room for HEPA filters and ULPA filter manufacturing, in order to ensure the filters are free from pollution before customer receive the products. The clean room has effectively meet the requirement for business and future expansion of capacity, logistics or hardware equipment. 2011﹎﹎﹎KLC again researched and developed our own a variety of purification products, the world-class quality, appearance and utility model patents has set off a clean air whirlwind among the industry. Opened up a new situation in the domestic air purification industry. 2013﹎﹎﹎KLC product technology break through the traditional constraints successfully, innovation and improvement has been promoted, some product projects have been reviewed and passed the state-level scientific and technological innovation projects. In the same year, KLC is awarded as "high-tech" enterprises. 2014﹎﹎﹎KLC imported a large-scale media folding machine and flat foaming machine, became the first in southern China producing 1500mm width mini-pleat media filter. 2016﹎﹎﹎KLC invested huge sums of money to introduce an U-level testing equipment for filter's air flow, resistance and efficiency testing, filling the blank in southern China market of air filter testing, secondary testing equipment with the Chinese Academy of Sciences. KLC all products start to label with a style code, which enable the immediate tracing from production, logistics and product maintenance. 2017﹎﹎﹎KLC brand get a further upgrade, integrated comprehensively both from internal and external, including APP, suppliers, supply chain, logistics system etc. Starting a new journey from the state-own company Da An Gene become a shareholder of KLC. 2020﹎﹎﹎Introducing fully automatic MPPS filtration efficiency scanning equipment and air flow resistance detection equipment imported from the United States to enhance KLC's product development capabilities and meet higher customer demands.. 2022﹎﹎﹎KLC was awarded the title of "Specialized, Refined, Unique and New" enterprise and innovative small and medium-sized enterprise. In the same year, KLC's R&D center was approved as the Guangdong Engineering R&D Center. 2024﹎﹎﹎Introducing fully automatic MPPS filtration efficiency scanning equipment and air flow resistance detection equipment imported from the United States to enhance KLC's product development capabilities and meet higher customer demands.
Production
Automatic Sealant Glue Inject Machine Interactive laser cutting machine Automatic Digital Punching Machine Automatic Digital Bending Machine Automatic Folding Machine Combination Folding Machine Hepa Media Pleating Machine Semi-Automatic Sealant Glue Inject Machine2 Separator Filter Aluminum Foil Presing Machine Efficiency, Air Flow, Resistance Testing Machine PAO Testing Equipment PAO Testing Equipment2 Smoke Leakage Test Air Duct Type Particle Counter Testing Efficiency, Air Flow, Resistance Testing Machine 2 Semi-Automatic Sealant Glue Inject Machine    
Certificate
6S management; ISO9001 quality management system; ISO14001 environmental management system
  • CE-AS Series
  • CE-LF Series
  • Air shower-CE
  • CE-Clean bench
  • CE-Pass box
  • FFU-CE
  • ISO9001 (EN)
  • ISO14001 2015
  • Pleated Filter-UL-Certificate of Compliance
  • Pocket Filter-UL-Certificate of Compliance
  • Separator Filter-UL-Certificate of Compliance
  • SGS AIR Shower test report
  • SGS FFU & LC VC
  • 2009 UL-filter
  • SGS F5 F7 F9 filter roll stitched RoHS
  • Certificate ffu ul
Our Team
Senior & professional sales service team and Professional production team
  • Senior & professional sales service team
    Senior & professional sales service team

    More than 10 years experience in filter and clean room equipment sales

  • Senior design and development team
    Senior design and development team

    More than 10 years of experience

  • Professional production team
    Professional production team

    6S management

  • 1994
    0
    Since
  • 2000
    0+
    Sales
  • 500
    0+
    Solutions
  • 100+
    0
    Countries
About Us
GUANGZHOU KLC CLEANTECH CO., LTD., as a leading supplier of air filters and cleanroom equipment, is committed to providing excellent solutions for clean and fresh air.
Featured Products
The products involve 58 fields and have a certain market share.
  • Air Filter
  • Cleanroom Equipment
Certificate
6S management; ISO9001 quality management system; ISO14001 environmental management system
  • CE-AS Series

    CE-AS Series

  • CE-LF Series

    CE-LF Series

  • Air shower-CE

    Air shower-CE

  • CE-Clean bench

    CE-Clean bench

  • CE-Pass box

    CE-Pass box

  • FFU-CE

    FFU-CE

  • ISO9001 (EN)

    ISO9001 (EN)

  • ISO14001 2015

    ISO14001 2015

  • Pleated Filter-UL-Certificate of Compliance

    Pleated Filter-UL-Certificate of Compliance

  • Pocket Filter-UL-Certificate of Compliance

    Pocket Filter-UL-Certificate of Compliance

  • Separator Filter-UL-Certificate of Compliance

    Separator Filter-UL-Certificate of Compliance

  • SGS AIR Shower test report

    SGS AIR Shower test report

  • SGS FFU & LC VC

    SGS FFU & LC VC

  • 2009 UL-filter

    2009 UL-filter

  • SGS F5 F7 F9 filter roll stitched RoHS

    SGS F5 F7 F9 filter roll stitched RoHS

  • Certificate ffu ul

    Certificate ffu ul

Latest News
KLC provides long-term security and technical support, based on data and facts, comprehensive and in-depth analysis, to provide you with professional advice and detailed product descriptions.
  • FFU, laminar flow hood, or high-efficiency air outlet: which should you choose for terminal air supply in a cleanroom?
    Apr 27, 2026
    FFU, laminar flow hood, or high-efficiency air outlet: which should you choose for terminal air supply in a cleanroom?
      When designing a cleanroom, the selection of terminal air supply equipment often determines the initial investment and operating costs. Fan filter unit (FFU), laminar flow hoods, and high-efficiency air outlets may seem similar in function, but they differ fundamentally in structure and application.   Fan filter unit (FFU) KLC fan filter unit (FFU) are modular terminal units with built-in fans and filters. They are characterized by their self-powered operation, independent adjustment, and elimination of the need for large air conditioning units. KLC fan filter unit (FFU) are simple to install, highly expandable, and reduce localized system resistance by eliminating the need for long-distance ductwork. KLC fan filter unit (FFU) are suitable for large-area, high-class (e.g., Class 100, Class 1000) cleanrooms or electronic cleanrooms requiring flexible layout.       Laminar flow hood KLC laminar flow hoods also come with built-in fans, but their design emphasizes the uniformity and unidirectionality of airflow. They are characterized by extremely high filtration efficiency (typically equipped with H14 or U15 grade filters), and the air distribution plate ensures a vertically downward laminar flow effect. KLC laminar flow hoods can create localized Class 100 clean environments in lower-level environments (such as Class 10,000 areas). KLC laminar flow hoods are suitable for areas with extremely high local cleanliness requirements, such as filling stations, weighing rooms, and the core areas of operating rooms in pharmaceutical workshops.     HEPA box This is a passive air supply terminal that does not have its own fan. The KLC HEPA box relies on the central air conditioning system's fan to deliver air through ducts. It consists of a plenum chamber, a high-efficiency filter, and a diffuser. Its advantages include low unit price, simple structure, and relatively easy maintenance (only filter replacement is required). The KLC HEPA box is suitable for non-uniform flow cleanrooms (such as Class 10,000 and Class 100,000) with sufficient central air conditioning pressure and a reasonable duct layout.     While the unit cost of a KLC fan filter unit (FFU) is higher than that of a high-efficiency air supply outlet, in large-scale projects, KLC fan filter unit (FFU) can save on a significant amount of air supply ductwork and complex variable frequency control systems, so the overall cost may not be higher. Cleanliness level: For Class 100 and above (ISO 5), KLC fan filter unit (FFU) or laminar flow hoods are recommended as the first choice; for Class 10,000 and below (ISO 7/8), KLC HEPA box offer better cost-effectiveness. Space constraints: If the ceiling space in the factory is limited and large air ducts cannot be installed, KLC fan filter unit (FFU) are the only option.   Choosing the right equipment can not only reduce energy consumption but also improve the stability of the clean environment. KLC offers a full range of terminal air supply systems, from the fan filter unit (FFU) to various air outlets, to meet the needs of different levels of engineering projects.
  • Troubleshooting and Maintenance Guide for Air Showers
    Apr 24, 2026
    Troubleshooting and Maintenance Guide for Air Showers
      As an essential passage to a cleanroom, the operating condition of an air shower directly affects the dust concentration inside the cleanroom. With frequent use, air showers are inevitably prone to certain malfunctions. The following are methods for addressing common faults and recommendations for routine maintenance.   Common Issues Fan Not Blowing Air: This is the most common fault. First, check whether the power is connected and whether the air switch has tripped. If the power is normal, the focus should be on checking whether the KLC emergency stop switch is accidentally pressed, causing the control circuit to disconnect; check the control panel for any fault alarms; and inspect whether any fuse in the control circuit is blown.   Door Cannot Open (Electronic Interlock Failure): KLC air showers typically use a double-door electronic interlock. If the door cannot open, confirm whether the other door is completely closed. The system will only release the electromagnetic lock when both doors are closed and in standby mode. Check whether the electromagnetic lock is properly engaged or if deformation of the door is causing the latch to jam. In an emergency, cutting off the power will automatically release the electromagnetic lock.   Significant Reduction in Airflow: If the airflow weakens, first check whether the KLC primary filter has accumulated too much dust and clean or replace it every 1–3 months. If airflow remains low after replacing the primary filter, the KLC high-efficiency filter (HEPA) may have excessive resistance due to reaching the end of its service life and should be measured with an anemometer. Additionally, check the power phase sequence to confirm the correct rotation direction of the fan.   Unusual Noise During Operation: Unusual noises usually originate from mechanical parts. Check whether the KLC fan impeller has foreign objects or loose screws; check whether the leveling bolts at the bottom of the air shower are evenly stressed to prevent enclosure resonance.   Infrared Sensor Malfunction: If the system does not automatically activate when someone enters, it may be due to dirt on the infrared sensor. Wipe it with a lint-free cloth. Also, confirm whether the emitter and receiver are properly aligned.     Three-Step Routine Maintenance Daily Inspection: Observe the control panel display and check whether the doors operate smoothly. Monthly Cleaning: Clean dust inside the cabinet, with emphasis on wiping the nozzles and sensors. Quarterly Replacement: Depending on the environmental cleanliness, replace the KLC primary filters regularly to ensure the service life of the high-efficiency filters.  
  • How often to change air filters? KLC breaks down cycles for primary, medium, and HEPA filters
    Apr 22, 2026
    How often to change air filters? KLC breaks down cycles for primary, medium, and HEPA filters
      During the daily operation of purification systems, maintenance personnel often face confusion regarding the timing of air filter replacements. Replacing them too early increases costs, while replacing them too late can affect cleanliness and even damage equipment. KLC provides a scientific reference guide for replacements.   Recommended Replacement Cycles for Different Levels of Filters KLC PRE-Filters (G1-G4): Recommended replacement cycle is 1-3 months. Their function is to intercept large dust particles. Since they are low-cost and have limited dust-holding capacity, frequent replacement can effectively extend the lifespan of the more expensive KLC medium and high-efficiency filters.   KLC Medium Filters (F5-F9): Recommended replacement cycle is 3-6 months. They mainly protect the high-efficiency filters by preventing fine dust from accumulating on HEPA filters media.   KLC HEPA Filters (H13-U16): Recommended replacement cycle is 2-3 years. Provided that the primary and medium filters are properly maintained, the lifespan of KLC HEPA filters can reach 3 years or even longer.     Three Scientific Standards for Determining Replacement In addition to time, KLC recommends judging replacement based on the following parameters: Differential Pressure (Core Standard): Filters must be replaced when operating resistance reaches twice the initial resistance or reaches the set final resistance value. It is recommended to install a differential pressure gauge in the system. Airflow Reduction: When the fan speed is set to maximum, but the air outlet velocity still fails to meet design requirements (e.g., below 0.3 m/s). Visual Inspection: When the filter media shows damage, discoloration, mold spots, or severe dust accumulation.     Methods to Extend Filter Lifespan  Regularly clean KLC PRE-Filters: If they are the washable type, it is recommended not to clean them more than three times. Check for Seal Integrity: Ensure that the KLC filter installation frame is leak-free to prevent bypass of dirty air into subsequent stages.     When replacing KLC HEPA filters, it must be done with the cleanroom system stopped. After replacement, a PAO leak test must be conducted to ensure proper installation and sealing. As a leading company in the air purification industry, KLC always recommends that users establish a scientific maintenance record and use 100% factory-tested original KLC filter media, ensuring the long-term compliance of clean spaces.
  • KLC Air Purification Equipment Configuration Guide for Food Factories: Worth Collecting
    Apr 20, 2026
    KLC Air Purification Equipment Configuration Guide for Food Factories: Worth Collecting
      Food safety is a top priority for national development. With the implementation of regulations such as the "General Hygienic Regulation for Food Production" (GB 14881), air purification in food factories has become a mandatory requirement. How can compliance be achieved while balancing production efficiency and costs? KLC provides the following professional configuration recommendations.   Food factories have extremely high requirements for controlling microorganisms in the air, such as mold and E. coli. KLC recommends setting high-risk areas (such as filling, cooling, and packaging) to Class 10,000 or Class 100,000; general areas (such as raw material handling) should be set to Class 300,000 or quasi-cleanroom standards.   Core Equipment Configuration Recommendations  KLC air showers are the mandatory passage for employees entering the processing workshop. It is recommended to use all stainless steel material with a design free of dead corners, facilitating daily spray disinfection and cleaning. KLC high-efficiency air supply outlets are installed on the ceiling, designed for easy disassembly to allow regular replacement of internal filters. For common raw material dust in food factories, such as flour and flavorings, a high-quality KLC primary filter (G4) and medium-efficiency filter (F7/F8) must be installed at the front end to prevent rapid clogging of the downstream high-efficiency filter.     Equipment Deployment Logic for Various Stages The focus in the raw material area is dust removal, which requires the installation of a high-air-volume KLC air filtration system. Processing/filling areas require vertical unidirectional flow or turbulent air supply; it is recommended to configure KLC Laminar Air Flow (LAF) hoods to create localized positive pressure at the filling port to prevent airborne microbial contamination. In the packaging area, KLC pass-through windows connect the space with the external environment, ensuring that packaging materials undergo surface purification before entering.     Requirements for Equipment under Food Safety Standards  Purification equipment in food factories must be rust-proof and moisture-proof, and the filter media should be non-toxic and odorless. KLC air filtration systems can effectively reduce food spoilage rates and extend shelf life. Guangzhou Jintian Ruilin (KLC) has focused on the food cleanroom sector for over 20 years, providing one-stop purification solutions for numerous dairy, beverage, and baking enterprises, helping companies achieve strict SC certification.  
Top

Leave A Message

leave a message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
Submit

home

products

WhatsApp

About Us