PHARMA & BIOTECH CLEANROOM FILTRATION

Pharma & Biotech Cleanroom Air Filtration Solutions

For GMP facilities, aseptic drug manufacturing, biosafety laboratories and hospital operating rooms where air cleanliness demands are extremely stringent, Yiran® provides complete solutions from pre-filtration to ULPA ultra-high efficiency filtration, strictly complying with EN 1822, ISO 14644 international standards and Chinese GMP regulations to ensure product quality and patient safety.

ISO 5-8
Cleanroom Class
GMP A-D
Pharma Grade
≥99.995%
H14 Efficiency
U15-U17
ULPA Ultra-High
Get GMP-Compliant Solution

Pharma Cleanrooms — Every Micron Matters for Life Safety

Air cleanliness in pharmaceutical manufacturing directly impacts drug quality and patient safety. GMP regulations impose strict quantified requirements on cleanroom airborne particles, microorganisms, temperature, humidity and pressure differentials. A failed filtration system can result in entire production batches being rejected.

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15,000+ Billion CNY
China Pharma Market Size
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ISO 14644
Cleanroom Classification
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0.1μm
ULPA Filterable Particle
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EN 1822
HEPA Filter Standard

Four Major Challenges in Pharma Cleanroom Environments

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GMP Compliance & Audit Pressure

Global drug regulatory agencies (NMPA/FDA/EMA) have increasingly stringent requirements for cleanroom environments and HVAC purification system validation. Filters must be supported with complete DQ/IQ/OQ/PQ documentation, particle count reports and leak test records. Any missing documentation can lead to GMP certification failure or warning letters, causing product launch delays and significant losses.

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Cross-Contamination Risk

In multi-product shared production lines, cross-contamination of Active Pharmaceutical Ingredients (API) is the greatest risk. ISO 14644 requires strict pressure differential gradients and airflow patterns. HEPA/ULPA filter leakage, poor sealing or return air entrainment can cause cross-contamination, leading to drug recalls and patient safety incidents.

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Aseptic Assurance Level

Aseptic preparations (injectables, ophthalmic products, etc.) require core filling zones to achieve ISO 5 (Class 100/GMP Grade A). Controlling particles in millions of cubic meters of air to single-digit levels demands terminal HEPA filters achieving H14 (≥99.995%) or U15 (≥99.9995%) ultra-high efficiency, and terminal HEPA installation seals must be 100% leak-free.

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HEPA Leak Testing & Lifecycle Management

Regulations require DOP/PAO leak testing on every HEPA/ULPA filter after installation, with periodic retesting during operation. Meanwhile, filter pressure drop changes, service life prediction and preventive replacement planning are key to continuous GMP compliance. Without scientific lifecycle management, unplanned downtime or premature filter failure will occur.

Four-Stage Purification System — From Pre-Filter to ULPA

Yiran® pharma cleanroom solution uses a four-stage pre-medium-subHEPA-HEPA/ULPA cascade configuration, with optional chemical filtration stages for VOCs and disinfectant vapors.

1
Pre-Filtration — Coarse Protection
Intercepts ≥5μm coarse particles · Extends downstream filter life
ALG G4 Non-Woven Flat PanelPAR G4 Panel
For pharma cleanroom HVAC, ALG series dual-layer non-woven construction is preferred, 620g/m² dust-holding capacity, 40% higher than single layer. Dimensions 592×592×46mm, rated airflow 3400m³/h, initial resistance only 55Pa. The dual-layer design provides more stable pre-filtration protection in GMP facility high-cleanliness scenarios.
2
Intermediate Filtration — Medium Purification
Removes 1-10μm particles · Protects HEPA/ULPA
EFL F7 BagVCP F9 Compact Enhanced
Standard solution uses EFL F7 bag filters, 6-bag design, initial resistance 110Pa. For aseptic-grade scenarios, upgrade to VCP compact F9 sub-HEPA filters, 4V design, initial resistance only 85Pa, 1400g dust-holding capacity, extending terminal HEPA life by 2-3x. Recommended replacement at final resistance ≤250Pa.
3
Terminal Filtration — HEPA / ULPA
Micron-level purification · Core of GMP aseptic assurance
SEP H13 ≥99.95%SEP H14 ≥99.995%ULP U15 ≥99.9995%
SEP series uses ultra-fine glass fiber media, continuously sealed with hot-melt adhesive, aluminum or stainless steel frame options. Standard size 610×610×78mm, H13 rated airflow 1700m³/h, initial resistance 100Pa. H14 efficiency ≥99.995% at MPPS (0.1-0.2μm), suitable for ISO 5/GMP Grade A core zones. ULP U15 (ULPA) efficiency ≥99.9995%, achieving ISO 4, used in biosafety cabinets, isolators and other ultra-clean equipment. Every unit undergoes EN 1822 full-efficiency scan testing before shipment.
4
Optional — Chemical Molecular Filtration
VOCs/Disinfectant/Odor Control
CGD Chemical Impregnated CarbonCAC Activated Carbon
After using ethanol, isopropanol, hydrogen peroxide and other disinfectants in pharma facilities, residual VOCs and oxidizing gases can be removed by CGD series chemical filters. CGD uses high iodine value activated carbon or chemically impregnated media (e.g. KMnO₄ impregnated alumina), with H₂O₂ breakthrough capacity of 8-12wt%. CAC series activated carbon panel filters are suitable for duct or return air applications, 46-96mm thickness options.

Pharma Cleanroom Recommended Product Parameters

Product SeriesModel ExampleEfficiency RatingStandard Size (mm)Rated Airflow (m³/h)Initial Resistance (Pa)Applicable ClassFilter Media
ALG Non-Woven PreALG-592-G4G4 / ISO Coarse 85%592×592×46340055Synthetic Non-Woven
EFL Bag MediumEFL-592-F7F7 / EN 779592×592×3812850110Synthetic Fiber
VCP Compact Sub-HEPAVCP-592-F9F9 / ISO ePM1 85%592×592×292-4V340085Ultra-Fine Glass Fiber
SEP H13 HEPASEP-610-H13H13 ≥99.95%610×610×781700100ISO 7-8 / GMP C-DUltra-Fine Glass Fiber
SEP H14 HEPASEP-610-H14H14 ≥99.995%610×610×781500125ISO 5-6 / GMP A-BUltra-Fine Glass Fiber
ULP U15 ULPAULP-610-U15U15 ≥99.9995%610×610×781200145ISO 4-5PTFE/Glass Fiber
CGD Chemical FilterCGD-592-KMnO4H₂O₂ ≥95%592×592×96200080KMnO₄ Impregnated Alumina
CAC Activated Carbon PanelCAC-592-CVOCs ≥90%592×592×46250060High-Iodine Activated Carbon

GMP Aseptic Facility AHU Filtration Stage Configuration

Four-stage filtration configuration example for aseptic injectable filling facility (GMP Grade A / ISO 5)

Outdoor Air OA
ALG G4
Non-Woven Pre
VCP F9
Compact Sub-HEPA
Cool/Heat/Humid
SEP H14
Terminal HEPA
Grade A Supply
OA → ALG G4 Pre → VCP F9 Sub-HEPA → Temperature/Humidity treatment → SEP H14 Terminal (efficiency ≥99.995%) → Unidirectional flow (0.45±20% m/s) → Grade A filling zone
Grade B/C/D Support Area Filtration Configuration
Return/Fresh Air
PAR G4
Panel Pre
EFL F7
Bag Medium
SEP H13
Terminal HEPA
B/C/D Supply
GMP Grade B (ISO 5 at rest/7 operational): H13 HEPA terminal; Grade C (ISO 7 at rest/8 operational): H13 HEPA terminal; Grade D (ISO 8): H13 optional. CGD chemical filter added on return air side to control disinfectant vapors.

Yiran® H14 HEPA vs. Leading International Brands

Based on EN 1822 MPPS method testing, 610×610×78mm, rated airflow 1500m³/h

Comparison ParameterYiran® SEP H14Leading Intl Brand ALeading Intl Brand BYiran® Advantage
Overall Filtration Efficiency (MPPS)≥99.997%≥99.995%≥99.995%Better Penetration Control
Initial Pressure Drop (Rated)125 Pa135 Pa130 Pa5-10Pa Lower
Leak Test (PAO/DOP @100% Flow)Zero LeakageZero Leakage≤0.01%Equivalent/ Superior
EN 1822 Full-Efficiency ScanPer-Unit ScanPer-Unit ScanPer-Unit ScanEquivalent
Frame Strength (Aluminum)6063-T5 Al ProfileStandard Al ProfileStandard Al ProfilePremium
Sealing MethodTwo-Component PUHot MeltPolyurethaneContinuous Seal
Validation Package (DQ/IQ/OQ/PQ)CompleteCompleteUpon RequestStandard Complete

* Test conditions: EN 1822-4 MPPS method, DEHS aerosol, scan speed per standard. Data are laboratory typical values.

Typical Application Scenarios

Case 1: Biopharma Aseptic Filling Line
Suzhou · GMP A/B Core Zone · 3 Filling Lines
  • Background: New mAb aseptic filling facility, EU GMP Annex 1 and PIC/S compliance required, core Grade A zone 280m²
  • Solution: Grade A: ULP U15 ULPA terminal filters, 125 units; Grade B: SEP H14 terminal, 86 units; Pre-filtration: ALG G4 + VCP F9
  • Validation: PAO leak test on each HEPA/ULPA + airflow uniformity + online particle monitoring
  • Documentation: Complete DQ/IQ/OQ/PQ validation package per GAMP5 and EU Annex 15

Key Results:

  • ULPA terminal Grade A zone: ≥0.5μm particles 0/m³ throughout (ISO 5 far exceeds limit)
  • PAO leak test first-pass rate 98.4% (only 2 of 125 needed seal adjustment)
  • VCP F9 pre-filter life 18 months, SEP H14 terminal expected 3-year replacement cycle
  • Successfully passed NMPA GMP compliance inspection and EU QP audit
Case 2: Hospital Operating Room Purification Retrofit
Guangzhou · Tertiary Hospital · 12 Clean ORs
  • Background: 8-year-old ORs, original filters degraded, post-operative infection rate rising, GB 50333 compliance review
  • Solution: Grade I OR (Class 100): SEP H14 terminal HEPA; Grade II/III: SEP H13 terminal; Unified pre-filtration: ALG G4 + EFL F7 + CGD chemical (anesthetic gas control)
  • Special: OR exhaust added CAC activated carbon filters for anesthetic gas removal (N₂O, sevoflurane)
  • Installation: Phased retrofit, 48h per OR, zero hospital operation disruption

Key Results:

  • Grade I OR ≥0.5μm particles controlled to ≤3/L (national limit ≤3.5/L)
  • Post-op infection rate reduced from 1.2% to 0.3%, 75% reduction
  • CGD chemical filter reduced OR sevoflurane concentration by 82%
  • HEPA filter life prediction system online, 100% planned replacement rate

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