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.
  • How to Scientifically Choose a High-Efficiency Air Filter? KLC Helps You Master These 5 Dimensions!
    May 06, 2026
    How to Scientifically Choose a High-Efficiency Air Filter? KLC Helps You Master These 5 Dimensions!
        In cleanroom operation, maintenance, and renovation, the selection of high-efficiency particulate air (HEPA) filters directly impacts environmental cleanliness and system energy consumption. KLC recommends precise matching based on the following five dimensions:   Five Dimensions ★ Efficiency LevelDetermine requirements based on the cleanroom class (e.g., ISO Class 5). Class H13 (efficiency ≥99.97%@0.3μm) is suitable for most pharmaceutical and electronics workshops, while Class H14 (≥99.995%) is recommended for semiconductor facilities or high-level laboratories. To avoid over-specification, KLC offers precisely graded products that meet standards while controlling costs.   ★ Air Volume and Air SpeedEnsure the filter’s rated airflow meets the actual operating airflow. A face velocity of approximately 0.45 m/s is recommended. Excessive airflow velocity increases resistance, while insufficient velocity reduces airflow uniformity. KLC products undergo rigorous airflow testing to ensure stable performance at rated airflow.   ★ Resistance ParametersLower initial resistance improves energy efficiency. Typically, initial resistance ranges from 150–220 Pa, with final resistance recommended to be no more than twice the initial value. Choosing KLC’s low-resistance filters can significantly reduce fan power consumption.   ★ Size and StructureStandard sizes, such as 610×610 mm, help reduce procurement costs. For space-constrained environments, KLC’s plateless HEPA filters are thinner, have larger dust-holding capacity, and are easier to install and replace.   ★ Special CompatibilityFor environments like chemical and pharmaceutical industries, corrosion resistance and fumigation resistance are critical. With over 20 years of R&D experience, KLC provides customized solutions and recommends proper pre- and medium-efficiency filter configurations to extend the life of high-efficiency filters.     Corporate Mission and Vision As a national high-tech enterprise, KLC focuses on addressing customers’ environmental challenges by providing competitive solutions and products. We continuously create value and are committed to becoming a world-class environmental technology company.  
  • Cleanroom Equipment List: KLC provides a summary for you
    Apr 29, 2026
    Cleanroom Equipment List: KLC provides a summary for you
      Building a high-standard cleanroom (dust-free workshop) is a systematic undertaking. In addition to decoration and construction, the configuration of hardware equipment is essential. KLC has compiled the following list, categorized by function.   Functional Category List ■ Air handling and filtration system This is the core of the cleanroom, responsible for providing clean air. It includes KLC pre-/medium-efficiency filters (installed at the front end of the air conditioning unit to intercept large dust particles), KLC high-efficiency particulate air (HEPA) filters, which determine the final cleanliness level and KLC air conditioning units (AHU) responsible for regulating temperature and humidity.   ■ Terminal air supply equipment The selection is based on cleanliness requirements and airflow design. KLC FFU (Fan Filter Unit) is self-powered and suitable for high-level cleanrooms; KLC high-efficiency air outlets are suitable for general clean areas; and KLC laminar flow hoods are used to provide local Class 100 protection.   ■ Personnel and material purification equipment This is a critical barrier to prevent contamination. It includes KLC air showers (for personnel), KLC pass-through windows (for material transfer), KLC cargo showers (for large items), and KLC hand dryers are included.   ■ Local purification and auxiliary equipment KLC clean booths and clean workbenches can quickly establish microenvironments.; KLC air shower pass-through windows improve pass-through safety; KLC biosafety cabinets are suitable for biological laboratories.   ■ Environmental monitoring equipment The equipment used to verify compliance includes the KLC dust particle counter, KLC differential pressure gauge, and KLC anemometer.   ■ Basic process of cleanroom construction Solution design (determining air quality level and differential pressure) → Equipment selection (calculating air volume) → Construction and installation → Commissioning and testing. Since its establishment in 2005, KLC has been committed to providing global customers with complete air purification solutions and high-quality purification equipment.  
  • 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.  
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