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Milwaukee Health Dept.: Homemade air purifier can protect against wildfire smoke inside at home

All you need is a box fan, air filters and a couple of other items you may already have

All you need is a box fan, air filters and a couple of other items you may already have Commercial Air Purifier

Milwaukee Health Dept.: Homemade air purifier can protect against wildfire smoke inside at home

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All you need is a box fan, air filters and a couple of other items you may already have

According to AirNow, Southeastern Wisconsin's air is considered some of the worst in the world due to wildfires in Canada.

The Milwaukee Health Department recommends everyone in the city should take the following precautions:

The air purifiers can filter out smoke inside your home.

"You're probably $200-$300 at a store for a really high quality or a good quality air purifier. The evidence for a do-it-yourself with a high-quality air filter, you're somewhere in the $50-$80 range," the Milwaukee Health Department's Dr. Nick Tomaro told WISN 12 News.

On Tuesday, he showed WISN 12 News an example of a homemade air purifier made out of a box fan, four air filters, cardboard and duct tape.

The health department has step-by-step instructions you can find here.

"If you have closed windows and you have this going on, this can be quite effective at helping you at home," Tomaro said.

Health officials recommend changing the filter every six to nine months.

Milwaukee Health Dept.: Homemade air purifier can protect against wildfire smoke inside at home

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