The Electro Air SS1620 electronic air cleaner is a whole house duct mount air cleaner. Maintenance on it consists of washing the prefilters as well as the collector cells on a monthly basis. Details of this work are listed on our site in the troubleshooting section. Parts for the Electro Air SS1620 electrostatic electronic air cleaner are listed below. This is a roughly 16 x 20 Super Slim air cleaner.