AlorAir 3 Packs MERV-8 Filters for Commercial Dehumidifiers SLGR 1400X This MERV-8-rated filter effectively captures microscopic air particles as small as 10 microns without affecting airflow. Specification Dimensions: 19.06"D x 16.34"W x 1.1"H Features Easy to replace and use Aluminum frame design enhances structural stability Regular filter replacement can boost compressor efficiency Changing the Filters Replace as needed, with a recommendation of every 3-6 months Follow the arrow indicator on the border for the correct installation direction