Are ozone generator air purifiers healthy?

If you only run it when you are not home. If it only puts out less than 0.05 ppm of ozone. If you don't have Asthma. Ozone causes airway restriction due to inflammation. It is very good for destroying odors and most allergens. Get one with a timer, turn it on when you leave, and make sure it has been off for at least an hour before you return home.