FAF Products
Bottom Replacement Terminal HEPA Filter Module
I. Product Introduction
The Bottom Replacement Terminal HEPA Filter Module is an innovative cleanroom filtration solution designed for easy maintenance without system shutdown. Featuring a bottom-access design, it allows HEPA filter replacement from beneath the ceiling grid, eliminating the need to dismantle ductwork or disrupt sterile environments.
Composition materials and operating conditions:
• The frame is made of aluminum alloy, and the top cover is made of galvanized sheet for durability and corrosion resistance.
• The air duct interface has a diameter of 250mm, 300mm, or 350mm, and a height of 80mm, 100mm, or 120mm, depending on the customer's preference.
• The high-efficiency filters are H13 or H14 grade, and they are partition-free for better airflow. The thickness of the high-efficiency filter is 70mm.
• The high-efficiency filter is fixed by a special pressing block made of aluminum alloy profiles, which ensures a tight seal and easy replacement.
• The diffusion plate can be either painted or flow equalizing film, depending on the customer's needs. The diffusion plate helps to distribute the air evenly in the clean room.
• The air volume can be increased by expanding the filtration area, which is achieved by increasing the number of folds in the filter. This allows more air to pass through the filter without compromising the efficiency.
• To extend the life of the high-efficiency filter, it is recommended to operate it at low wind speed. This will reduce the wear and tear on the filter and maintain its performance.
• The maximum operating temperature and humidity for the clean room air outlet are 80°C and 80%, respectively. These conditions should not be exceeded to avoid damaging the components.
II. Product Advantages
It has high efficiency, low resistance, and light weight, which makes it easy to install and operate.
It can adjust the air volume according to the needs of the clean room, and it has a negative pressure sealing mechanism to prevent air leakage. It can be connected with round hose or spiral air duct for flexible installation.
It has a dry sealed ceiling design that is suitable for clean rooms with high standards of cleanliness and hygiene.
Its biggest feature is that it allows the high-efficiency filter to be replaced directly under the air outlet without affecting the cleanliness of the workshop. This saves time and cost, and ensures the quality of the clean room environment.
III. Product Parameters
Common product specifications, models, and technical parameters
| Model | Size(mm) | Air Flow(m³/h) | Initial Pressure (Pa) |
Efficiency （MPPS） |
Structure Type |
| SAF-YTH-X10 | Box 1170x570x150 | 1000 | ≤115±20% | H13(99.97%)@0.3μmH14(99.995%)@0.3μm | Bottomreplacement |
| Hepa 1138*538*70 | |||||
| SAF-YTH-X12 | Box 1220x610x150 | 1200 | |||
| Hepa 1188*578*70 | |||||
| SAF-YTH-X10A | Box 1170x570x180 | 1000 | ≤115±20% | H13(99.97%)@0.3μmH14(99.995%)@0.3μm | Bottomreplacement |
| Hepa 1138*538*70 | |||||
| SAF-YTH-X12A | Box 1220x610x180 | 1200 | |||
| Hepa 1188*578*70 |
Note: This product can accept non-standard customization.
IV. Product Applications
1. Pharmaceutical & Biotechnology
- Aseptic filling lines (ISO 5-7 environments)
- Vaccine production (Biosafety Level 3/4 facilities)
2. Microelectronics
- Semiconductor cleanrooms (Class 1-100)
- Lithography equipment protection
3. Healthcare
- Operating theater laminar flow ceilings
- Sterile compounding pharmacies
4. Food & Nuclear
- Aseptic packaging rooms
- Nuclear fuel processing areas
V.FAQ
Q1: How does bottom replacement prevent contamination?
A: The downward airflow during replacement carries particles away from the work zone, while optional BIBO ports enable sealed filter removal.
Q2: Can existing terminal boxes be retrofitted?
A: Yes – Adapter kits allow conversion of side-access modules to bottom replacement.
Q3: What’s the filter lifespan?
A: Typically 3–5 years, but depends on:
- Particle load (monitor via pressure drop)
- Environmental class (ISO 5 vs. ISO 8)
