This is a graded product. A1 products are as new but have been box opened. All A1 products will be fully bubble-wrapped for transportation. GRADE A1. Replacement Hepa & Carbon Photo Catalyst filter for electri Q EAP400D-V1 Air purifiers. This filter is all you need to bring new life to you electri Q EAP400M Air purifier & electri Q EAP400D-V1 Air purifier.