This Aerostar NOVAPLEAT air filter, sized 16x20x4, is designed to keep indoor air clean and healthy. With a MERV rating of 11, it is effective in eliminating allergens, dust and other particles from the air. It fits in furnaces, air conditioners and other HVAC systems, and has a filter life of up to 3 months.

The filter media is synthetic and the frame is made of paper. It comes in a pack of 6 units, each measuring 15.5" x 19.5" x 3.75", and is compatible with various smart home systems such as Philips Hue, Amazon Alexa and Google Home. This air filter is manufactured in the United States and is a great choice for anyone looking for a high quality and reliable air filter.