Note: The enclosed information is not absolute. It is to serve as a general guide line base on information which we have collected over
the years. There may be vast different values given by different designers as products keep changing and improving . We advise that
qualified engineers & product consultants be engaged before determining the required space condition. We hope that this information
will serve our clients better in selection of equipment and space condition design.

Type of Product	RH	Type of Product	RH
Sugar Storage	20-35%	Laboratory electronics	45-60%
Breweries	35-45%	Plastic Pallets	5-30%
Coffee Powder	30-40%	Computer peripherals	50-60%
Milk Powder Storage	20-35%	Rust Resistance	Below 40%
Seed Storage	35-45%	Medical Syrups	30-40%
Unpacked Medicine	20-35%	Capsule Storage	30-45%
Anti-Fungus	45-55%	Powder Storage	30-45%
Camera Lenses	40-55%	Wood Drying	25-35%
HT Switch Room	45-55%	Explosive	*35-50%
Transformer winding	15-30%	Hospital Electronics	45-65%
Semiconductors	30-50%	Normal Storage	50-55%
Archive	40-55%	Musical Instrument	45-55%
Paper Storage	35-45%	Leather Product	40-55%
Rust Prevention	below 55%, >40% for zero rust	Cable Wrapping	15-25%
Library	50-55%	Chemical Lab.	30-45%
Spray Paint	30-50%	Harddisk Production	40-50%
Lithium Battery	Below 2 %	Magnetic Tapes	40-55%
Wafer Relatede	5-10%

Note: * Explosive storage must not be less than 30% RH as static electricity may build up and cause sparks in the air to
cause an explosion. Special DH in one way air flow arrangement or total explosion proof system is needed for such environment.

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INFORMATION FOR DEHUMIDIFICATION PROCESS

Calculating Humidity Load & Sizing Dehumidifier
Comparison between Desiccant & Condensation DH

Conversion Table

Introduction to the idea of Dehumidification

Low Humidity Application

Psychrometric Chart on line

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DST Desiccant DH	60 L/day Floor Standing Portable DH
Big Desiccant Dehumidifiers	140-300 L/day Condensation Dehumidifier
Small Desiccant Dehumidifiers	General Purpose Dry Cabinets
Europe Condensation Dehumidifiers	Japan Super Dry Cabinets
15 L/day Portable Dehumidifier	Dr Storage Dry Cabinet
16 L/day-Portable Dehumidifier	Cold Room Dehumidifier
22 L/day Portable Dehumidifier	Humidifier / Steamer
40 L/day Portable Dehumidifier
35 L/day -Portable Dehumidifier
80 L/day Floor Standing Dehumidifier

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Address: Block 28, KALLANG PLACE, # 03-16/17, SINGAPORE 339158. Fax: 65- 6234 6389 email: email@way-technovation.com