Air Qualitee Cabin Air Filters are built to exacting OE specifications. Media is an exact match with how the car was built. Removes over 90% of particles larger than 3 microns. Product is 100% test fitted in OE housings to ensure fast, easy, and problem-free installation. Over 85% can be installed in 15 minutes or less. Tri-lingual, step by step instructions included with every filter for easy installation. Every AQ filter is packaged in a sealed bag to ensure a clean filter upon purchase.