An insulated equipment cover combined with a glove-like extension for use with various types of equipment enables use in cold temperatures and adverse weather elements. At least one static solenoid is mounted on the base structure and is connected to an electrical power supply of the printer. A roll having a width is located in the portion in its upright position. The value of this partial pressure corresponds to a predetermined, desired rate of oxidation of the compounds contained in the feed liquid. The PWM module receives an audio input signal and generates a PWM signal. The films of the present invention can be welded using RF energy.