Despite such opposition, the first meters were installed by the Dual Parking Meter Company beginning in July 1935; they cost a nickel an hour, and were placed at 20-foot intervals along the curb that corresponded to spaces painted on the pavement.
The single solution for everything in your air. Many air cleaning systems filter out particles. Some combat germs, and some fight odors. But only the PureAirâ¢ Air Purification System addresses all three types of indoor air pollutants.
A Concentric Diffuser system is designed to eliminate the need for traditional duct-work by providing a single air diffuser to supply & return air to each rooftop. A Concentric Diffuser provides conditioned air from a HVAC rooftop unit to a space, while returning air back to the rooftop unit through the same diffuser. Designed to deliver air into an open space, or just below the ceiling of an occupied space using a very short distance.