That's a great idea. I have suffered from allergies my whole life. After sometimes waking up with headaches or constantly sniffling and blowing my nose. I love my air filter/purifier. I love being able to take deep breaths of clean fresh air. You don't really know how filthy the air is in your home until you have an air purifier.
RE: What To Look For When Buying Hepa Air Filters/Purifiers