HACE MJS-900 Instructions Manual page 8

GENERAL INfORMATION
What is air humidity?
Air humidity is the water vapour content in the air.
What is relative humidity?
Relative humidity is the proportion of moisture or water vapour in the air in relation to the maximum possible level at
the current temperature, expressed as a percentage.
How can insufficient humidity affect us?
When the air is too dry, hydrogen levels in the body decrease, and negative symptoms can occur or be aggravated.
Common symptoms are:
• Nasal congestion or runny nose • Breathing difficulties
• Static electricity • Dry complexion with flaking and skin cracking
• Tiredness, drowsiness and poor concentration
• Respiratory infections and diseases, such as asthma.
• Problems with dry complexion and eczema
What is ideal relative humidity?
In tropical countries such as Singapore, the climate is extremely hot and humid. This is why air-conditioning systems
are used everywhere. The disadvantage of air conditioning is that it makes the air much too dry. A comfortable indoor
environment with relative humidity of 60% to 70% is recommended.
Environment Relative humidity (%)
Indoor humidity level with air conditioning 30 %-40 %
Ideal indoor humidity level 60 %-70 %
Outdoor humidity level 70 %-95 %
*Recommended in accordance with the guidelines for a good indoor climate.
Why use ultrasound technology to humidify the air?
Ultrasound technology is an extremely effective and economical method of maintaining or changing relative humidity
in the ambient air. Ultrasound technology functions silently through high oscillations and vibrations that convert the
water into a fine water mist. The mist is dispersed into the surrounding air, adding humidity.
How does the HACE MJS-900 humidifier work?
When the water is kept in the water tank, it runs into the water container. Here, the water comes into contact with the
ultrasound resonator, or nebuliser. The nebuliser vibrates very fast, at up to one million vibrations per second. This rapid
vibration causes the water to disperse into tiny droplets and pass through the misting nozzle, efficiently increasing the
level of humidity in the room.
fUNCTIONS
Auto
In automatic mode, the humidifier automatically adjusts the misting level according to the surrounding humidity
level until the desired relative humidity is reached. The desired humidity level is between 50% and 65% relative
humidity.
13
Sterilisation and odour elimination with UV photocatalysis
The mist is delivered via the fan vent. The MJS-900 uses a combination of UV LED and bio-/photocatalysis to constantly
sterilise and eliminate bad odours from the air before blowing out the clean mist.
The combination of bio-/photocatalysis acts as an eco-friendly oxidation agent when activated by ultraviolet light. When the
photocatalyst captures the ultraviolet rays, active oxygen is formed from the water or from the oxygen in the air. The active
oxygen effectively breaks down unpleasant-smelling particles and sterilises the mist.
Dual misting nozzle
So that the humidifier can be used in large areas, there are two misting nozzles, which can be turned for the best effect
Dual humidifying methods
• Dry throat; sore throat The MJS-900 can use two humidifying methods. Thermal evaporation (warm misting) and ultrasonic humidifying (cold
• Dry eyes; smarting misting). Both methods use ultrasonic vibrations. For rapid humidifying, we recommend warm misting. The mist dispersed
via the warm misting option is at approximately 35ºC, while cold misting is at room temperature.
Setting the humidity level
The MJS-900 lets you create a pre-set, and you can choose from 40% to 75% relative humidity (in increments of 5%) or
continuous mode.
Humidifier timer
The MJS-900 can be programmed to run for between 1 and 9 hours or for continuous operation. When setting the timer, each
press of the TIMER button advances the timer by 1 hour.
14