The below description is taken from LEGO.com.
“This is a job for the Hazmat Guy! Er, do you smell something funny?”
When you’ve got a bad case of mysterious glowing goo in your city, the hard-working Hazmat Guy is just the fellow to call. Whether the job involves searching the sewers for dirty sludge or cleaning up old apartments, he’s always ready to put on his airtight protective suit, grab his hi-tech equipment, and make the streets safe and tidy once more.