Prioritize Key Environmental Standards
This is the fundamental criterion for selecting eco-friendly doors. Prioritize products that meet the ENF grade for formaldehyde emissions (≤0.050 mg/m³). Ensure the panels use MDI formaldehyde-free adhesive and the surfaces feature eco-friendly water-based paint or PET/PP lamination. Ask the vendor for authoritative third-party test reports to rule out hidden harmful emissions-a crucial step for households with the elderly, pregnant women, or children.
Inspect Structural Integrity and Hardware Details
For the door frame, choose a primary aluminum-magnesium-titanium alloy with a wall thickness of at least 1.5 mm to ensure resistance to deformation and fading. Avoid door cores filled with low-quality cardboard or foam; instead, opt for high-density "bridge-hole" structural boards or aluminum honeycomb cores.
Select hardware such as stainless steel hinges capable of supporting at least 60 kg each and silent locks tested for 100,000 opening/closing cycles. This prevents issues like door sagging or noisy operation after prolonged use.
Consider Interior Design Compatibility and After-Sales Service
Prioritize products that offer whole-house color matching, allowing the door style, trim, and glass design to harmonize with your overall décor (e.g., modern minimalist, New Chinese style). Additionally, choose brands with standardized local installation teams that provide free on-site measurements and long-term after-sales support; this helps avoid problems common with online purchases, such as sizing errors or improper installation that compromises sound insulation and sealing performance.