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Clean Air Smog Voted #1 San Francisco Smog Check Station for 3 years in a row

The finest Smog Check in San Francisco has been our goal since we first started.

Clean Air Smog is located in the south of market area, in downtown San Francisco. We are a California State certified Smog Check station and can provide service for all vehicles. Whether its a Star Certified, Gross polluter, Out of State registration, or just a regular smog check, our facility can handle it. Our ASE Certified technicians operate two State-of-the Art Smog testing equipment, so there's never a wait time. Also, we have now been awarded as a Star Certified Station.

Your #1 California Smog Check Station? 

  • 15 minute Smog Checks

  • "Drive-Thru" speedy smog test design

  • 2 Bar97 and 2 OIS Smog Machines = no wait, no appnt needed

  • Convenient Downtown SF Location (SOMA)

  • Free wifi

  • Pet friendly


Services Offered

  • Gross Polluter Certification

  • Star Certified Smog Check Inspection

  • Out of State Smog Test

  • Regular California Smog Check

  • Smog Check San Francisco

  • We smog diesel's and hybrid's


Clean Air Smog has been around for 13 years now and has proudly performed over 100,000 smog checks since its inception. Besides maintaining an outstanding standard of excellence in professionalism, quality, and customer service, Clean Air Smog prides itself in contributing to community charities and organizations such as the Salvation Army, Delancys Foundation and the SFPD.

Clean Air Smog has also been graciously awarded 5 star reviews on sites such as yelp, citysearch, google, yahoo and msn. We would like to thank all of our customers for your support. We couldn't have done it without you guys.

We look forward to seeing you guys again.

Clean Air Smog STAR Certifed
Clean Air Smog
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