What precaution is necessary for homes with known lead hazards?

In homes with known lead hazards, regular lead exposure testing is a crucial precaution. This approach ensures that any potential lead contamination is monitored over time, allowing for timely interventions to protect the inhabitants, especially children, who are at a higher risk of lead poisoning. Conducting these tests helps identify the presence of lead in dust, soil, or paint, enabling homeowners and occupants to take appropriate actions to mitigate exposure.

While the other options may seem beneficial, they do not specifically address the ongoing risk of lead hazards. Removing furniture might temporarily reduce exposure risks but does not eliminate the problem of lead being present in the home environment. Using lead-free paint is a positive measure for future renovations but does not affect existing lead hazards. Lastly, installing air purification systems may improve air quality but does not target lead particles that may be present in various home surfaces or materials. Therefore, regular lead exposure testing stands out as a necessary and proactive measure in homes with known lead hazards.