With cases on the rise, the Centers for Disease Control and Prevention is now saying Nassau and Suffolk are considered high risk.
Long Islanders said they're using common sense.
"I have two vaccines, I have two boosters, I wear my mask at work in common areas. At my desk, I don't," said Nikki Katz, of Huntington.
The CDC also urges people to stay up to date on vaccine information and to get tested if they experience symptoms.
It's not clear yet if the new indoor mask recommendation will be enforced.
T.J. Arella, co-owner of 8 Well, a small group personal training studio that opened just seven weeks ago in Huntington, said he's not too concerned.
"It's been a big controversy what we're going through, but as long as people stay safe, I dont think it will affect business at all," Arella said.
Health officials urge anyone with compromised immune systems to mask up indoors at all times.