There are invisible particles in the air that you can’t see with the naked eye. These particles may cause irritation to the body in some way. They may cause to coughing fits, a runny nose, sneezing, nausea, headaches, or even allergic reactions. Over time, inhaling irritating substances could cause long-term problems in your respiratory system and other body systems.
You need a good air filter helps to keep particles, dust, allergens and other things in the air from circulating into your home, thus improving your indoor air quality(IAQ).