However, they say this will be limited by installing a "high quality commercial recirculation unit" which are typically used in malls and airport settings.

Source: https://www.ardrossanherald.com/news/23558240.saltcoats-plans-shawarma-takeaway-adams-avenue/?ref=rss

Ramaphosa’s cancelled visit come amid the recirculation of an old video, in which the president is patting his government on the back for ‘fixing the country’s energy crisis.’

Source: https://www.citizen.co.za/news/ramaphosa-cancels-davos-trip-due-to-ongoing-energy-crisis/

The author, in his own words: He said that many car owners don’t know how to activate the recirculation function.

Source: https://centralrecorder.com/im-a-car-expert-and-theres-a-secret-button-drivers-are-using-wrong-it-could-be-dangerous-to-press-it-at-random/

When it's cold, keep your car's default fresh air mode on and don't touch the recirculation button, as using it can cause damp and humidity in the car and fog up the windows.

Source: https://www.thescottishsun.co.uk/motors/11052853/driving-expert-secret-button/