If you have VOC or formaldehyde issues at home, you may need a carbon filter. Get The Sqair with a carbon pre-fitted to protect your lungs from harmful gases!
Kickstarter price: $105, retails for $120.
Kit yourself out with a one year supply of HEPA filters with the Year Pack! You'll get the world's most cost-effective purifier, and FOUR filters to last you one year.
Kickstarter price: $145, retails for $160.