Thank you for purchasing your Flow Personal Pollution Monitors (PPM) through our McMac Cx website!

By executing your purchase of Flow PPM here, through our McMac Cx website, you directly support our McMac Cx Air Champions – Citizen Scientists Student Scholarships.

Our Formal Agreement with Plume Labs, the Manufacturer of the Flow 1 and Flow 2 Personal Pollution Monitors, ensures you receive exactly the same full warranties and support directly from the manufacturer, except ALL McMac Cx Profit goes directly to support Passionate Community focused Citizen Scientists working to make our Neighborhoods places where Humans Thrive and Nature Flourishes.

  • Flow 2 Personal Pollution Monitors cost $159.00 US + Tax (Free Shipping). Follow the link HERE to purchase Flow 2 PPM.
  • Flow 1 Personal Pollution Monitors cost $129.00 US + Tax (Free Shipping). Follow the link HERE to purchase Flow 1 PPM.

Flow 2 – Flow 1 Comparison