Scented chemical fragrances in household products react with ozone, creating harmful nanoparticles that pollute indoor air.

In terms of both cost and quality of ingredients, this easy-to-make spray beats the commercial stuff by a mile.

Personally, I'm not a big fan of masking odors with chemical ... consider until it's too late to fix easily. Most air fresheners are just scented sprays but ones such as Febreze are also odor ...