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Discover the purpose and types of humidifiers to improve indoor air quality during cold days. Learn about evaporative, atomizing, infrared, steam, and ultrasonic humidifiers to prevent dryness.
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I. HUMIDIFICATION A. THE PURPOSE 1. ADDS WATER VAPOR TO THE DRY INDOOR AIR DURING COLD AMBIENT DAYS 2. PREVENTS STATIC ELECTRICITY, DRY SINUSES, SORE THROAT AND DRY SKIN B. TYPES OF HUMIDIFIERS 1. EVAPORATIVE : USES A DRUMLIKE PAD OR “MEDIA’ THAT ABSORBS WATER. WARM DUCTED AIR ABSORBS THE WATER VAPOR AND DISTRIBUTES HUMIDITY THROUGHOUT THE CONDITIONED SPACE ›
2. ATOMIZINGTYPE: a.SPRAYS MIST INTO A SUPPLY DUCT. b. MUST ALWAYS BE INSTALLED ON THE WARM AIR (SUPPLY) SIDE OF A FURNACE INSTALLING ON THE RETURN AIR SIDE WILL CONDENSE THE VAPOR AND RUST THE HEAT EXCHANGER ›
3. SELF CONTAINED (TABLE TOP) : a.USED IN HYDRONIC APPLICATIONS WHERE THERE IS NO DUCT WORK b. EACH ROOM REQUIRES ITS OWN SMALL UNIT c. OFTEN DISTILLED WATER MUST BE USED WITH THIS TYPE DUE TO MINERAL BUILD UP NOTE: BASEBOARD HYDRONIC HEAT DOES NOT PROVIDE HUMIDITY JUST BECAUSE ITS REFFERED TO AS “WET HEAT” ›
4. INFRARED : HIGH TEMPERATURE LAMPS BOIL WATER AS THE SUPPLY AIR PASSES BY. A. VERY COMMON ON “LIEBERT” COMPUTER ROOM SYSTEMS ›
5. Steam Humidifiers a. Vapor is made in these machines by using a heating element to cause steam b. This method does not cause minerals to be dispersed in the air c. Tap water can often be used rather than distilled water d. Many will, upon a call for humidification, turn on the blower without a call for heat e. Most costly to operated of all the types because of the electric element current draw ›
6. Ultrasonic a. Water mist is created by ultra high frequency sound. b. The water vibrates rapidly in response to the high frequency and vapor is created which is then dispersed with a fan ›