
Blj Htr Cross-Counterflow Aging Resistance Energy Recovery Exchange Core. 5-Year Lifespan: ABS frame and polymer membrane combination ensures aging resistance with less than 10% performance degradation. Anti-Mildew & Antibacterial: Achieves 99.9% anti-mildew and antibacterial efficiency to prevent microbial growth and contamination. Washable Core: Polymer material surface supports immersion water washing, unlike traditional paper cores. Superior Airtightness: Optimized frame design achieves 99% core airtightness to prevent air leakage. Condensation Control: High moisture permeability inhibits condensation in large temperature difference environments. Low Air Resistance: Smooth inner surface design significantly reduces wind resistance for energy saving. Customizable Dimensions: Total height customizable from 200mm to 600mm with various hexagonal and quadrilateral sizes.