Authorities say while the smoke's toxicity was still unknown - all smoke is toxic.
The newsroom has shifted down the road to Spark HQ.
The protests erupted in early June and snowballed into the city's biggest political crisis in decades.
The pair clashed over players going to a function days before playing Wales.
Vernon Tava told 1 NEWS he rejected the 'blue-green' label - and is aiming to take environmental policies to the negotiating table,
"It had come so far and to now see this major, major setback will be a real blow," Jacinda Ardern said.
Around 1000 people are employed at NZ's only aluminium smelter.
The rocker wore an eye-catching tuxedo for the special occasion.