I did a search and it seems there are some antioxidants that can help. See the attachments in the following message for a list:

Products to help agains air pollution

I also recently spent about 12 hours researching air purifiers. I purchased 2 (got 1 free) and it has dramatically improved the air quality in my house.

I did this because I noticed chemtrails starting to appear over my home town and immediately started having symptoms that I never had before, such as very achy muscles, constant headaches, very scratchy throat with caughing, and sinus pain. It was very dramatic for me because it all started suddenly when the chemtrails appeared and I noticed that it only occured on days where many chemtrails were visible.

I purchased 1 IQ Air GC with the gas filter cartridges for my main floor and 2 Alen 350's for the bedrooms floor. They have made a complete difference in my symptoms and have virtually eliminated them. There are several other advantages as well such as odor control (I have a cat) and dust control which is dramatically better (hardly any dust now).

I also tried a until that produced a small amount of ozone but I had to send it back because it made my sinuses have a burning sensation and gave me a headache.

Hope this helps.