Learn English: Wildfire Smoke Invades Homes Globally (hard)

A new study reveals that toxic wildfire smoke from blazes annually affects over a billion homes worldwide.

These microscopic particles, traveling thousands of miles, create dangerous indoor air pollution levels.

While air purifiers offer a solution, the financial burden disproportionately impacts poorer regions.

This alarming discovery underscores the urgent need for global action to mitigate this health crisis.