Efficient Full Heat Exchange System
The Gram-governing fresh air system features a high-efficiency thermal exchange core, ensuring optimal energy recovery while maintaining indoor air quality. Precision-engineered aluminum alloy construction enhances durability and heat transfer performance.
Advanced Ventilation & Exhaust Integration
Equipped with a disc freezer ventilation port, this unit seamlessly combines intake and exhaust functions. The multi-layer filtration system captures dust and allergens, ideal for households, offices, or commercial spaces requiring constant airflow.
Ultra-Quiet Household Design
Innovative noise-reduction technology keeps operational sound below 25dB. The sleek, compact housing blends into any interior while enabling easy installation in walls or ceilings.
All-Climate Performance
Specially designed for year-round use, the thermal exchanger prevents condensation in winter and overheating in summer. Corrosion-resistant ABS vents ensure long-term reliability in humid or dry environments.
Bulk Supply Advantage
Direct factory pricing with wholesale quantities available. Compatible with standard ducting systems (80-150mm), reducing additional retrofit costs for large-scale projects.