FFU is a self-powered, high-efficiency air filtration system engineered to deliver clean, consistent, and particle-free airflow in cleanrooms and controlled environments. Designed to meet the demands of modern contamination control, each FFU combines a high-performance fan module with a HEPA or ULPA filter, ensuring reliable and precise air quality management by effectively overcoming internal system resistance.
These units are optimized for modular cleanroom systems, offering flexibility and adaptability in applications such as zoning control, process-specific airflow management, and retrofit installations. Built for durability, efficiency, and ease of maintenance, FFUs are reusable, serviceable, and cost-effective, making them a valuable long-term solution for critical industries like pharmaceuticals, semiconductors, biotechnology, and healthcare.
Core Features & Technical Highlights
Cleanroom Compatibility: Ideal for ISO Class 5 to Class 8 cleanroom environments
Filtration: Integrated with HEPA (¥99.99%) or ULPA (99.9995%) filters
Construction:
Casing: Galvanized or stainless steel
Impellers: Steel aluminum alloy or full aluminum
Motor Type: DC brushless motors with stepless speed control for stable airflow and energy efficiency
Airflow Capacity: Ranges from 850 to 2400 CFM, available in standard 2×4 and 4×4 configurations
Pressure Type: Negative pressure supply system minimizes ductwork and reduces contamination risk
Control Options:
Software-based control panels
Direct switch start functions
High-temperature operational safety
Model Variants
GF22AC: (575*575*180mm) Compact, efficient unit for smaller modular zones like OT
GF24AC: (1175*575*180mm) Compact, efficient unit for smaller modular zones
GF44AC: (1175*575*180mm) Larger coverage with enhanced control for high demand areas
The Rayshen SS Fan Filter Unit (AC Motor) is a powerful, high-efficiency filtration system designed to deliver steady, laminar, and contamination-free airflow inside controlled cleanroom environments. Equipped with a robust AC motor and integrated HEPA or ULPA filtration, this FFU ensures continuous particle removal while maintaining stable performance across industrial applications.
Built using premium SS-304 stainless steel, the unit offers exceptional durability, corrosion resistance, and hygienic operation—perfect for demanding sectors such as pharmaceuticals, electronics, biotechnology, laboratories, aerospace, and precision manufacturing.
✔ Cleanroom-Grade Airflow Performance
Suitable for ISO Class 5, 6, 7, and 8 cleanrooms
Delivers smooth, uniform laminar airflow
✔ HEPA & ULPA Filtration Options
HEPA Filter: 99.99% @ 0.3μm
ULPA Filter: 99.9995% particle retention
✔ High-Strength AC Motor
Ideal for continuous heavy-duty operation
Stable airflow delivery
Long motor life and reliable performance
✔ Premium Stainless Steel Construction (SS-304)
Hygienic and corrosion-resistant
Easy to clean and maintain
Suitable for sterile environments
✔ Wide Airflow Capacity
Airflow range: 850 CFM to 2400 CFM
Compatible with 2×4 and 4×4 modules
✔ Negative Pressure System
Reduces the risk of contamination leakage
Minimizes ducting requirements
✔ Control Options for Easy Operation
Direct switch ON/OFF panel
Compatible with advanced control modules
Overheat protection for additional safety
Parameter
Specification
Material
Stainless Steel (SS-304)
Motor Type
Heavy-duty AC Motor
Filter Options
HEPA / ULPA
Filtration Efficiency
99.99% – 99.9995%
Airflow Capacity
850 – 2400 CFM
Models
GF22AC, GF24AC, GF44AC
Pressure Type
Negative pressure
Control Options
Direct switch / Panel control
Noise Level
Low-noise operation
Pharmaceutical & Biotechnology
GMP-compliant cleanrooms
Sterile manufacturing
Critical packaging areas
Semiconductor & Electronics
Micro-assembly
PCB manufacturing
Precision electronics production
Healthcare & Hospital Environments
ICUs & operating theaters
Diagnostic labs
Controlled sterile rooms
Research & Life Science Laboratories
Analytical labs
Biosafety areas
Contamination-sensitive research
Automotive & Aerospace Manufacturing
Engine assembly
Paint shops
Controlled machining environments
GF22AC
Compact, lightweight FFU ideal for small modular cleanrooms, OT zones, and targeted contamination control areas.
GF24AC
Perfect for process-specific zones requiring stable airflow and consistent filtration performance.
GF44AC
Large-area FFU with enhanced airflow capacity suitable for high-demand cleanroom operations and large production zones.
✔ Leading cleanroom equipment manufacturer in India
✔ Premium stainless steel construction
✔ AC motor built for continuous heavy-duty operation
✔ Compatible with HEPA & ULPA filters
✔ Designed for modular cleanrooms and retrofits
✔ Low maintenance & long-lasting performance
✔ Reliable airflow for 24/7 industrial use
1. What is an AC Fan Filter Unit?
An FFU with an AC-powered motor that supplies filtered, laminar airflow inside cleanrooms.
2. How is AC motor FFU different from DC motor FFU?
AC FFUs offer strong, continuous airflow suitable for heavy-duty applications, while DC FFUs are more energy efficient and quieter.
3. What filtration options are available?
Both HEPA and ULPA filters can be used depending on your required cleanliness level.
4. Which industries prefer AC motor FFUs?
Pharma, electronics, aerospace, biotech, medical device manufacturing, and research labs.
5. Do you provide custom-size FFUs?
Yes, Rayshen manufactures FFUs in customized sizes and configurations for specific project needs.
6. Is the stainless steel body mandatory for cleanrooms?
SS-304 ensures hygiene, corrosion resistance, and durability—ideal for sterile and critical environments.
Looking for a high-efficiency Stainless Steel FFU with AC Motor for your cleanroom?
Rayshen delivers premium cleanroom airflow solutions with pan-India support and fast installation.
📞 Call: +91-8793667336
📧 Email: info@rayshen.in