Ventilation equipment is used to regulate indoor air quality and temperature. Range hoods, room air distribution units, and heat recovery ventilation units are commonly used. Fume hoods are used in kitchens and labs, while room air distribution units maintain temperature and quality. Heat recovery ventilation units replace stale air with fresh air and stabilize humidity levels.
Ventilation equipment is typically used in buildings and homes to improve the quality and regulate the temperature of indoor air. This type of equipment is often needed to remove or prevent the buildup of things like carbon dioxide, smoke, dust, odors, and moisture. The different types of ventilation equipment used in buildings and homes include range hoods, room air distribution units and heat recovery ventilation units.
Fume hoods are typically used in kitchen areas and laboratories. A range hood usually draws air from inside a building to the outside using some form of ductwork. Some range hoods simply recirculate the indoor air after removing the contaminants by means of a filter. Fume hoods range in size from small units used in residential applications, to large commercial systems found in restaurants and coffee shops. Extractor hoods are used in kitchens to remove smoke, heat and odors. Fume hoods are used in laboratories to minimize exposure to hazardous vapors and dusts. This type of ventilation equipment is typically only used in localized areas of a building or home.
Room air distribution units are typically used in homes and buildings to maintain both indoor air temperature and quality. These units are designed to mix new air conditioning with the existing air in a room or office. In this air mixing application, a centrally located air exchanger pushes air from ceiling-mounted diffusers into individual rooms through a network of air ducts. This forced air mixes with the existing air to control the temperature and humidity in the room. The air exchanger draws existing ambient air into a filtration system to remove impurities and condition it for reuse. In large open buildings such as auditoriums, air is forced from floor mounted diffusers into the seating and stage areas at a slower rate and allowed to slowly rise to an overhead filter system.
Heat reclaim ventilation units work by replacing contaminated stale air with fresh, filtered outside air. In this type of ventilation system, fresh air is drawn in through ducting from the heat recovery unit and the contaminated air is blown out through separate ducting. The warmer outgoing air is typically used to heat the cooler incoming air. Heat recovery ventilation units are particularly useful for stabilizing humidity levels within a building or house to make the air more comfortable. While this type of ventilation equipment usually most effectively reduces indoor air pollutants, it is often less energy efficient.
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