T he air in your home includes millions of small particles that are both visible and invisible. If you look at a sunbeam coming into your home, what you are actually seeing is light reflecting off these particles floating in the air. Unfortunately, these particles are only the largest particles which account for one percent of all the air pollutants in your home. In fact, in one cubic foot of air in front of you, there are about one million particles and contaminants too tiny too see.