Experts suggest changing air conditioner filters more frequently.
FRESNO, Calif. (KFSN) -- Skies in the Central Valley are still hazy, filled with smoke from surrounding wildfires. It continues to make the air unhealthy to breathe.
"Just like you check the weather, you can actually check the air quality, depending on where you're living, and then really plan your day around that," said Dr. Rais Vohra, Fresno County Interim Health Officer.
Dr. Vohra said the long-term concern goes beyond your lungs.
"The cardiovascular system, the heart; even the brain, there's actually some connections between air quality and an increased risk of stroke outcomes related to pregnancy," said Vohra.
With the smoke sticking around, he advises people take the proper precautions to stay healthy.
That includes changing the filter of your air conditioning unit, which can quickly fill up with particulate matter.
Kevin Seubert works at Fresno Ag Hardware. He says you should check those filters more often when the air quality is bad.
"I would check it probably every couple of weeks just to make sure it's not clogging up," said Seubert.
If you have asthma or other breathing problems, experts suggest keeping an air purifier in your home. And you can mask up when heading outside.
"Those N95 respirators - they were designed not for COVID, but actually for particulate matter like the particulate matter that we have on bad air days," said Vohra.