The cs-4 humidifier operates in accordance with the evaporation principle which is proven to be one of the best methods for humidification in museums, libraries and art galleries. This particular procedure ensures that calcium deposits or water precipitation do not form, thereby, effectively protecting works of art and furnishings.

The humidifier is electronically controlled with a ch-1 humidistat, a dual device that has an additional power switching unit (optional) for control of both a humidifier and de-humidifier, keeping the humidity at the required level.

Operating on normal or purified tap water the unit, unlike many other humidifier brands, has a removable water reservoir, thus avoiding the necessity to bring open water containers to the humidifier. The reservoir can be filled away from the humidifier and returned and inserted without the risk of spillage.

The housing is made of strong, durable plastic, designed to be anti static, resistant to acid and alkali, corrosion-proof and dimensionally stable. Its elegant design ensures it blends discreetly into any surroundings and cleaning poses no problems as the relevant assemblies can be removed from the unit without the use of tools.

Safety features have been specifically addressed as far as design is concerned, with a screen guard that protects all moving parts, such as the blower assembly and, once the supply of water has been used, the humidifier turns itself off automatically.

Specification
Case height	559 mm
Case width	610 mm
Case depth	343 mm
Weight (empty)	11 kg
Power supply	230 volts single phase 50Hz
Power supply	230 volts 50Hz
Power consumption	Approximately 150 W
Housing	Rotational spun moulded construction
Filter medium	Patented ‘super wick’ with greater life expectancy than foam
Water capacity	19 litres
Maximum supply current	0.65 amps
Maximum fuse rating	3 amps
Air Flow
High speed 1200 rpm	500 M3/hr
Medium speed 850 rpm	350 M3/hr
Low speed 525 rpm	205 M3/hr
Performance @ 21&Mac251;C/30% RH
High speed 1200 rpm	43 litres/24hr
Medium speed 850 rpm	33 litres/24hr
Low speed 525 rpm	22 litres/24hr
Average sound level @ 2m
High speed 1200 rpm	57 dB(A)
Medium speed 850 rpm	51 dB(A)
Low speed 525 rpm	45 dB(A)