Remove shoes at the door
The first four steps inside a house are responsible for tracking in 85% of outdoor contaminants, such as lead and pesticides. Once these substances are inside the home, they are much more likely to enter the bodies of the occupants. Therefore, the simple act of removing shoes at the door is a highly effective first line of defense against indoor pollution.
Contaminants from the outside world (e.g., lead, pesticides) adhere to shoe soles. By removing shoes at the door, these substances are contained to the entryway, preventing their spread throughout the living space where they are more likely to be inhaled or ingested by residents.
The thing to be aware of is the first four steps inside the house tracks 85% of the outside world's contaminants includes leads and pesticides. So the big one here is remove your shoes at the door.
