AIR OPTIX NIGHT & DAY AQUA allow up to thirty days of continuous, natural vision means complete day-to-day freedom. These contact lenses are great for those with active or busy lifestyles who don’t have time to clean and maintain their contact lenses. Enjoy all the freedom of contact lenses without the chores of maintenance. Air Optix Night and Day are specially made to allow up to 5 times more oxygen to flow to your eyes than regular contact lenses.