All You Need To Know About Humidity!
Humidification is simply the addition of water to the air. It is the artificial regulation of humidity in home environments, industrial environments, and health care applications such as artificial respiration. To feel comfortable, people required a certain amount of ambient moisture in the air which is not too high, and not too low.
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Two quantities are commonly used to measure humidification the one is Absolute humidity which is expressed in grams of moisture per cubic volume of air, and second one is relative humidity is expressed as a ratio between the amount of moisture currently in the air and the maximum moisture the air could hold before condensation occurs.
In other words, it is the process whereby the absolute humidity of the air in a building is maintained at a higher level than that of outside air or at a level higher than that which would prevail naturally.
Humidifier is a device that increases humidity (moisture) in a room or an entire building. In a home, the use humidifiers are commonly used to humidify a single room, while the whole-house or furnace humidifiers are connected to the home’s HVAC system which provides humidity to the entire house.
There are two types of humidity:
01. Absolute Humidity
02. Relative Humidity
Simply it is the mass of water vapour per unit volume, usually expressed in grams per cubic meter.
The mass of water vapour present in a unit volume of moist air.
Absolute Humidity, often referred as ‘humidity’, which is a measure of the definite amount of water vapour in a particular sample of air; a mixing ratio (gm water vapour/kg of dry air), dew point etc.
For example, the maximum absolute humidity of warm air at 30°C/86°F is approximately 30g of water vapor – 30g/m3. The maximum absolute humidity of cold air at 0°C/32°F is approximately 5g of water vapor – 5g/m3.
Relative Humidity is expressed commonly as a percentage value, and is the ratio of the actual amount of water vapour present in a sample (Absolute Humidity) to that amount that would be needed to saturate that particular sample.
In other words, it is the ratio of the partial pressure or density of the water vapour in the air to the saturated pressure or density respectively of water vapour at the same temperature.