you can make an at home air filter for relatively cheap. Or buy one off of Amazon (linking the one I have) www.epa.gov/sciencematte... LEVOIT Air Purifier for Home... www.amazon.com/dp/B07VVK39F7
Do-It-Yourself Air Cleaners: Making Cleaner Air More Accessible | US EPAEPA and other health, environmental, and nonprofit organizations have provided instructions for creating do-it-yourself (DIY) air cleaners.www.epa.gov