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DIY Air Cleaners
USEPA has launched a new Do-It-Yourself (DIY) Air Cleaners webpage designed to help individuals, households, schools, and communities improve indoor air quality when commercial air cleaners are not available or affordable. This new webpage provides clear, practical guidance on when to consider using a DIY air cleaner, how to build one, and how to use it effectively—especially during emergencies such as wildfire smoke events
Cutting Through the Smog
Reducing building equipment pollution is one way to ensure Maryland maintains safe ozone levels.