King County Metro Completes Bus Fleet Air Filtration Upgrades

King County Metro announced today that all 1,200 buses in its fleet will complete HVAC upgrades by summer, installing hospital-grade air filtration systems.

Clean air public transit Seattle

Cleaner Commutes

The $4.2 million investment follows rider surveys showing air quality as the top concern for returning transit users post-pandemic.

Similar upgrades are planned for Sound Transit Link light rail by year-end.

Sarah Chen

Sarah Chen

Author & Expert

Environmental scientist specializing in Pacific Northwest air quality and indoor air health.

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