Look for blinds made from natural, renewable materials like bamboo, jute, or sustainably harvested wood. Recycled aluminum or fabrics made from post-consumer plastic are also great low-impact options. Consider energy efficiency—cellular or honeycomb blinds provide insulation, helping regulate indoor temperatures and reduce heating and cooling use. And if possible, choose brands with eco-conscious manufacturing practices or certifications like GREENGUARD or OEKO-TEX.