Opening windows for at least 30 minutes a day, every day, is always a good idea. In terms of air purifiers, I’ve tried a five and given away three (if you want to buy my remaining ionic breeze, drop me a note!), and the one I kept was the Sun Pure (thanks for giving it to me, Marcy!). Zeolite on its own has done absolutely nothing for me (I keep having high hopes for it). However, I just recently added potpourri to my get-rid-of-cooking-and-renovation-smells toolbox. I get my custom-scented potpourri at the wonderful Good Home Store on 24th Street between 6th and 7th Avenues. (UPDATE: as of September 2012, the store is no longer there! I guess you can order from the website?)
Good Home Store
The Good Home Store has much more than potpourri, and pretty much everything they have can be customized to your scent preferences. I’m a fan.
SYNTK 