In our opinion as LEED Consultancy in UAE, the Environmental Protection Agency believes indoor air is two to 10 times more contaminated than outdoor air, depending on where you live. LEED-compliant buildings have lower levels of mould, mildew, and airborne contaminants. Research indicates that doing this results in happier, healthier, and more productive workers. Buildings with LEED certification consume less energy; some even generate a large portion of their electricity on-site using renewable resources. Energy Star appliances, low-flow plumbing fixtures, and stormwater management elements like rain gardens contribute to decreased water usage.