Your Professional Gel Sealing HEPA Air Filter Supplier
Our goal is to be your reliable partner for gel sealing HEPA air filter in China. As an air purification solution provider integrating R&D, manufacturing and sales, SYNRUI has its own registered brand "SYNRUI". We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.
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![Gel Sealing HEPA Filters]()
Gel Sealing HEPA FiltersThe gel sealing HEPA filter is a terminal air filtration device used in clean environments such as clean rooms, biosafety laboratories, pharmaceutical workshops, and operating rooms. It uses a -
![Gel Seal HEPA Filter]()
Gel Seal HEPA FilterGel seal HEPA filter is an air filtration device with a non-partition structure design and a filtration efficiency reaching the HEPA level (H14/H13). It is mainly used to capture more than 99.99% of -
![Side Gel Sealing HEPA Air Filter]()
Side Gel Sealing HEPA Air FilterSide gel sealing HEPA air filter is a high-efficiency air purification device that adopts a partition-free structural design and side liquid tank sealing technology. The core feature is to increase -
![Top Gel Sealing HEPA Air Filter]()
Top Gel Sealing HEPA Air FilterTop gel sealing HEPA air filter is a high efficiency filter designed for high cleanliness environments (such as biosafety laboratories, electronic clean rooms, and pharmaceutical workshops). The core
SYNRUI Facoty
SYNRUI is an air purification solution provider integrating R&D, manufacturing and sales and has its own registered brand "SYNRUI". SYNRUI's main business: primary efficiency, medium efficiency, sub-high efficiency, high efficiency, ultra-high efficiency air filters, high temperature resistant filters, liquid tank filters, activated carbon chemical filters, FFU, bag-in-bag-out filters, air outlets, laminar flow hoods, air showers, transfer windows, clean rooms, etc., providing air filtration equipment OEM, etc.
Why Choose Us
Strict quality control system
From raw material procurement to production, testing, and packaging, we implement the ISO 9001 quality management system throughout our entire process. Each filter undergoes 12 quality inspections, including leak detection and resistance testing.
Our certifications
We are ISO 9001 certified, ISO 14001 certified for environmental management systems, ISO 45001 certified for occupational health and safety management systems, ISO 9001:2015 certified, and CE certified.
Our factory
Our company boasts over 20,000 square meters of modern production facilities, including a 3,500 square meter Class 10,000 cleanroom.
Our services
Our team of experts will recommend the most suitable products according to customer needs and provide detailed consultation, we ensure timely delivery, and we provide long-term service support.
Advantages of Gel Sealing HEPA Air Filter
Gel-seal technology: Creates a hermetically sealed barrier with an extremely low leakage rate (<0.001%). The PU gel cures into a jelly-like substance that automatically fills and adapts to any minor imperfections in the frame, eliminating all potential air leakage paths.
Easy installation and maintenance: Allows for quick installation and replacement by a single person. The gel sealing hepa filter is simply lowered into the gasket channel, where it seals under its own weight, eliminating the need for cumbersome clamping tools or a multi-person team.
Long service life: Features a sealing material made from imported high-performance PU sealant, which offers excellent chemical stability, temperature resistance (-20°c to 80°c), and anti-aging properties, ensuring a long operational life.
High-strength housing: Constructed from high-quality, corrosion-resistant aluminum alloy profiles. The surface is anodized, resulting in a high-strength, lightweight housing that guarantees long-term stability, even in high-humidity environments.
Various efficiency levels: Available in a range of efficiency grades including h13, h14, u15, and u16. Every unit is individually scanned and tested with a laser particle counter to ensure performance.
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difference |
Top Gel Sealing HEPA Air Filter |
Side Gel Sealing HEPA Air Filter |
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Structural features |
The gel sealing is only located at the top edge of the filter frame. The bottom and two side frames are flat or simple sealed structures without pre-set liquid tanks. |
The gel sealing is completely distributed on the top, bottom and both sides of the filter frame. |
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Sealing principle |
During installation, only the sealant is injected into the top tank. The filter is pressed vertically downward into the installation frame by its own weight or mechanical pressure, and the liquid sealant forms a one-way permanent elastic seal on the top during the curing process. |
During installation, the sealant needs to be continuously injected into the liquid groove along the entire perimeter of the frame. After the filter is pressed into the installation frame, the liquid glue forms a 360° full-circumference, permanent elastic seal without dead angles during the curing process. |
Specification of Gel Sealing HEPA Air Filter
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Filtration Grade |
H13/H14 ≥0.3μm ≥99.99%/≥99.999% (EN 1822)/MERV18(ASHRAE 52.2)/MERV19(ASHRAE 52.2) |
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Frame |
Anodized Aluminum Profiles |
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Filter Media |
Ultra fine glass fiber/PTFE |
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Liquid tank glue |
PU Gel |
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Maximum Temperature |
70℃ |
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Maximum Humidity |
100%RH |
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Separator |
Hot Melt Adhesive |
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Sealant |
EPDM |
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Origin |
China |
Features of Gel Sealing HEPA Air Filter
A gel sealing HEPA filter utilizes a liquid gasket technology to achieve an ultra-high-performance, hermetic seal. The filter media, consisting of ultra-fine glass fiber or PTFE membrane, is housed in a frame that seals against a plenum using a polyurethane (PU) gel, creating a seamless barrier.
This filter is capable of capturing 99.99% of particles as small as 0.3 microns. It is essential in critical environments with stringent air cleanliness standards, making it a core component for contamination control.
Application of Gel Sealing HEPA Air Filter
Industry
In core chip manufacturing processes such as lithography and etching, gel sealing HEPA filters effectively block particulate contamination, preventing chip circuit short circuits or performance failure.
Biomedical industry
In aseptic filling and vaccine preparation in pharmaceutical production, they ensure that the air entering clean areas is sterile and particle-free, and their sealed structure prevents microbial leakage.
Food processing industry
In aseptic production processes such as baking and dairy products, they effectively filter bacteria and dust from the air, preventing food contamination and enabling air cleanliness levels in production workshops to reach Class 10,000 standards.
Medical surgery
In Class 100 operating rooms, they maintain ultra-high cleanliness levels in the surgical area, reducing the risk of postoperative infection.
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Top Gel Sealing Type HEPA Air Filter |
Side Gel Sealing Type HEPA Air Filter |
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1.FFU (fan filter unit) cluster: FFU is usually installed horizontally on the ceiling, and the filter is inserted vertically upward from the bottom into the FFU box. The top gel sealing is located at the lower edge of the filter in the direction of gravity, and the liquid tank naturally faces downward after installation. The glue injection sealing surface is located at the top (that is, the upper frame in contact with the FFU box after installation), which can effectively prevent the colloid from flowing and contaminating the filter material. Gravity + box compression force ensures sealing reliability, which is the mainstream design for FFU application. 2.Partial high-efficiency air supply outlet (conditions must be met): Applicable to the air supply outlet structure where the filter is installed vertically from the bottom. The air supply outlet frame design is required to provide sufficient downward compression force, and the bottom/side sealing structure is reliable (such as high-quality sealing gaskets). 3.Laminar flow hood, workbench: The principle is similar to FFU, and the filter is installed from bottom to top. |
1. High-efficiency air supply (especially in critical areas): The filter is usually inserted vertically downward from the ceiling into the air supply static pressure box. "Side liquid tank" in this scenario actually refers to "full-circumference liquid tank". After installation, the liquid tanks around the filter need to be sealed with glue to ensure that the airflow penetrates the filter material 100% without bypass. It is the gold standard for air supply in ISO Class 5 (Class A) clean rooms and biosafety laboratories. 2. Biosafety cabinet/isolator exhaust: Negative pressure environment, and involving hazardous biological factors. Full-circumference liquid tank seal provides absolutely reliable protection to prevent pollutant leakage. 3. Process exhaust/return air that requires the highest sealing level: such as toxic and harmful operation areas and highly active substance processing areas in pharmaceutical factories. 4. Strict laminar flow equipment/sealed cabin: key process equipment with "zero tolerance" for leakage. |
Customizable options of Gel Sealing HEPA Air Filter
Customizable frame depths: We offer a versatile range of custom frame depths catering to various requirements and applications. Whether you need panel filters for hospital air conditioning systems or clean rooms for microchip manufacturing, we have the perfect fit for you.
Media options: We provide both fiberglass and ptfe media options, allowing you to choose the ideal filtration material based on your specific needs. Rest assured, our filters deliver outstanding performance and efficiency, maintaining superior air quality in any environment.
Core Features Comparison Table
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Feature |
Top tank filter |
Side tank filter |
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Tank location |
Top |
Top + bottom + sides (full circumference) |
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Sealing surface |
One side (top) |
360° all-round |
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Sealing grade |
High |
Highest Level |
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Installation complexity |
Low |
high |
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Time and cost of injection |
Low |
high |
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Typical installation orientation |
Tank facing downward (vertical upward installation) |
Any direction (but installation must match the injection surface) |
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Core application scenarios |
FFU, high-efficiency air outlet installed partially upward |
Downward-mounted high-efficiency air supply vents, BSL laboratories, negative pressure exhaust, isolation equipment |
Core features and advantages
Extreme airtightness - liquid tank sealing technology
Liquid glue sealing characteristics: The sealant is in a semi-fluid state at room temperature. During installation, the filter and the keel or frame squeeze the liquid tank, and the glue fills all tiny gaps to form a dead-angle seal.
No leakage risk: After the liquid glue is cured, it forms a permanent, seamless, elastic sealing layer, which completely eliminates frame leakage (the main failure point of traditional gasket sealing), and the leakage rate is ≤0.01%.
High stability: Gel sealing HEPA air filter is not affected by temperature and humidity changes, vibration, and aging, and the sealing performance is reliable for a long time.
01
Excellent filtration efficiency
Gel sealing HEPA air filter meets the H13 (99.95%@MPPS) or H14 (99.995%@MPPS) high-efficiency level of EN 1822 standard, and effectively intercepts particles ≥0.3 microns (MPPS) (including bacteria, virus carriers, and microparticles).
Ultra-fine glass fiber filter paper, deep filtration, high dust holding capacity, and long service life.
02
Ultra-low operating resistance & energy saving
Mini pleat design: The filter material is folded in a continuous and tight corrugated form, and there is no partition to block the airflow, and the effective filtration area is significantly increased.
Direct advantages: Under the same air volume, the initial resistance is lower; under the same pressure difference, the air volume is larger, which significantly reduces the fan energy consumption and operating costs.
03
Compact structure & high strength
No metal partition, the overall structure is lighter.
Save installation space, especially suitable for places with limited floor height or compact air ducts.
04
Wide compatibility & reliability
Standard size is compatible with mainstream FFU, high-efficiency air outlet, and clean ceiling system.
Strict quality control (such as scanning leak detection/DOP/PAO test for each unit) to ensure reliable factory performance.
05
Packing and Shipping of Gel Sealing HEPA Air Filter
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Packing |
Carton Boxes |
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Shipping |
Shipped by road, sea, rail |
FAQ
Q1: Will the liquid tank glue volatilize pollutants and affect the clean room?
A: It uses high-purity silicone rubber (volatile matter ≤ 0.01%), meets the ISO 10993 biocompatibility standard, has no visible volatilization below 80°C, and is suitable for sensitive environments such as semiconductor lithography areas.
Q2: How to deal with the overflow of liquid tank glue after installation?
A: Use a lint-free cloth dipped in isopropyl alcohol to gently wipe along the rubber surface. Do not scrape it (to avoid damaging the sealing of the rubber surface). After cleaning, re-check for leaks.
Q3: Is the replacement cycle of the liquid tank high efficiency longer than that of the ordinary non-partition high efficiency?
A: Yes. The liquid tank seal reduces the uneven load of the filter material caused by leakage. Under the same environment, the service life is 20%-30% longer than the knife-edge seal non-partition high efficiency (about 2-3 years).
Q4: Can the liquid tank glue be replaced on site?
A: Not recommended. The tank glue and the frame are integrally formed. On-site glue filling is prone to produce bubbles and impurities, causing the leakage rate to exceed the standard, and the filter needs to be replaced as a whole.
As one of the most professional gel sealing hepa air filter manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to buy gel sealing hepa air filter for sale here from our factory. Contact us for quotation.
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