Accumulations of water anywhere in the system may foster harmful biological growth that can be distributed throughout the building. Air Cleaners Air cleaners may be an important part of an HVAC system, but cannot adequately remove all of the pollutants typically found in indoor air. Air cleaners should only be considered as an adjunct to source control and ventilation. Air cleaners that have a high filter efficiency and are designed to handle large amounts of air are the best choice for use in office buildings. Air cleaners include the simple furnace filter, the electronic air cleaner, and the ion generator.
All air cleaners require periodic cleaning and filter replacement to function properly.
Although some of the devices which are designed to remove gaseous pollutants may be effective in removing specific pollutants from indoor air, none are expected to adequately remove all of the gaseous pollutants typically present in indoor air. It is generally agreed that poor indoor air can adversely affect employee health and productivity. Improvements in the indoor air environment may substantially increase employee moral and productivity. Therefore, it is important to include indoor air quality controls in operation, maintenance, and energy conservation strategies. Operate the ventilation system in a manner consistent with its design.