Return Grill
💨 Maintains pressure balance and airflow consistency
🛡️ Prevents particle infiltration with tight, flush sealing
🔧 Reduces maintenance downtime with fast filter access
🌐 Supports worldwide cleanroom standards and custom compliance
The Return Grill is a precision-engineered Air Return Vent answer designed for use in high-purity cleanroom environments. With a flush-mount profile and built-in prefilter slot, this grille helps each environment friendly air return and secondary filtration. Whether in a health facility surgical suite or a pharmaceutical cleanroom, this unit ensures that air cleanliness and structural integrity are in no way compromised.
Its compatibility with modular wall structures approves for seamless integration, casting off gaps and minimizing infection risks. The unit can be manufactured from high-grade stainless metal or anodized aluminum, supplying most beneficial resistance to corrosion and assembly the strict hygiene needs of GMP and ISO-certified facilities.
Key Features
✅ Flush-Mounted Design – Perfect alignment with modular cleanroom walls
✅ Integrated Filter Slot – Supports prefilter or optional HEPA filter for enhanced cleanliness
✅ Custom Material Options – Available in stainless steel or anodized aluminum
✅ Tool-Free Maintenance – Removable mesh for easy cleaning and quick filter changes
✅ Leak-Proof Fit – Precision construction ensures no air bypass or leakage
Popular Sizes Available
20X20 Return Air Grille – Commonly used in modular cleanrooms for standard air return applications
8X30 Return Air Grille – Slim design for corridors or restricted wall space
Other custom sizes available on request
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | Return Grill |
| Function | Air return + optional secondary filtration |
| Mounting Style | Flush-mounted, cleanroom-compatible |
| Material Options | SUS304 stainless steel / anodized aluminum |
| Filter Compatibility | Prefilter (G4/F5) or HEPA (optional) |
| Common Sizes | 20"x20", 8"x30", customizable |
| Application Standards | ISO 14644-1, GMP, FDA, EU cGMP |
Ideal For
This Air Return Vent system is perfectly suited for environments where both design precision and air quality are critical. Recommended applications include:
🏥 Hospital Clean Zones – ICU, operating theaters, sterile corridors
💉 Vaccine Production Lines – Viral vector, mRNA production
🧪 Pharmaceutical Fill & Finish Areas – Ampoule, vial, or syringe filling
🔬 Clean Laboratories – Biotech, microbiology, tissue culture labs
Advantages
💨 Maintains pressure balance and airflow consistency
🛡️ Prevents particle infiltration with tight, flush sealing
🔧 Reduces maintenance downtime with fast filter access
🌐 Supports worldwide cleanroom standards and custom compliance
Why Choose Us
With over a decade of experience in cleanroom air systems, we manufacture return grilles trusted by leading pharmaceutical, biotech, and healthcare facilities. Our engineering team ensures every Return Grill meets your site’s airflow, hygiene, and layout requirements—right down to the millimeter.
📩 Request a Quote
Looking for a reliable 20X20 Return Air Grille, a slim 8X30 Return Air Grille, or a custom-sized Air Return Vent for your cleanroom? Contact our team today for technical support, CAD drawings, or a fast quote.
