Use a humidifier to increase the humidity level in the room air to an ideal humidity of between 40 and 60% and thus improve air quality. Description of how a humidifier works and its benefits right here ⬇️ Contents :

1. What is the purpose of a humidifier?
a. The fundamental principle of our air humidifiers: they enable an ideal hygrometry rate to be
maintained (generally between 40 and 60%) in buildings, for the comfort of people, or to preserve all
types of sensitive materials (machines, electronics, works of art, etc.).
b. For which sectors does it apply? In many sectors (industry: automotive, pharmaceutical, paper,
aeronautics, data centre, … / services: hospitals, schools, museums, …)
c. Air humidifier vs. air purifier

2. What are the specific features of the humidifier?
a. Its many advantages
b. The EvaPack TM adiabatic humidifier and cooler
c. How a humidity controller works

1. What is a humidifier used for?

a. Its basic principle

The humidifier is a device that increases the humidity level in a room or building. This device can be
placed in a room or in an air handling unit to be diffused in an entire building via a network of ducts.
The principle consists of injecting water vapor into the air in order to humidify it to reach an optimal
hygrometry. In a building, it will increase the general comfort level by maintaining an ideal hygrometry
rate between 40% and 60% in order to avoid or limit symptoms such as: dry eyes, headaches, fatigue,
dry skin, skin rashes, blocked nose or runny nose.
In industry, it will avoid the technical risks associated with electrostatic discharges.

b. For which sectors does it apply?

Here are some of the sectors of activity that require air purification:

• Hospital
• Automotive industry
• Textile products
• Pharmaceutical industry
• Offices
• Food storage and maturation
• Clean rooms and laboratories
• Nuclear, Aeronautics and Space
• Data centers
• And many more…

Focus on the hospital sector

The need for humidification is paramount in the hospital and healthcare sector, which is most
susceptible to various bacteria.
Controlled relative humidity helps to :

• improve the elimination of bacteria and viruses
• reduce the virulence of respiratory infections
• limit the spread of viruses through bioaerosols

• improve the comfort of patients and staff
  It is therefore essential to ensure a humidity level of between 40% and 60%.

c. Air humidifier VS Air purifier

The air purifier is a filter that eliminates certain pollutants and bad smells. The air humidifier does not
filter the air, it adds water to the ambient air in order to raise the hygrometry rate of a room when it is
lower than the recommended one.

2. What are the specific features of the humidifier?

a. Its multiple advantages

This humidity device has a number of advantages:

• Air quality: Controlling humidity limits the transmission of airborne infections. In addition, humid air is less aggressive to the respiratory tract. It relieves nasal congestion, coughing and asthma.

• Product quality: The relative humidity maintained between 40% and 60% in buildings allows the quality and appearance of waterproof products to be maintained.

• Better comfort: Indoor air that is too dry causes discomfort (dry skin, feeling of cold…)

• Taking precautions: The higher the humidity level, the lower the risk of electrostatic discharge. Controlling the humidity level protects against ESD (electrostatic discharge)

b. Devatec humidifiers

Devatec (a subsidiary of Armstrong International) has been involved in the development of humidity
control systems for over 40 years and uses its know-how to meet the needs of the most demanding
professionals in the service and industrial sectors. Devatec is well known in France and abroad,
Its main assets are constant product innovation, allowing it to offer modern and efficient solutions, and
an international network of recognized distributors.

Here is a list of humidifiers that you can find at Devatec:

• ELMC electrode humidifier
• RTH-HC & LC resistance humidifiers
• FogSystem water spray humidifiers

• The EvaPack TM Evaporative Media Humidifier

Find out about other types of DEVATEC humidifiers.

EvaPack TM adiabatic humidifier

The EvaPack TM is one of the most renowned in its product range. Its role is to humidify and cool the
air through an adiabatic process that limits energy consumption.

Its main advantages :

• Maximum water capacity: up to 6,000 l/h
• VDI 6022, RoHS, ISO 846 certification
• Made to measure
• No absorption distance
• Due to its low energy consumption, it fits perfectly into companies’ decarbonization policies

EvaPack TM uses the sensible heat of the air to enable evaporation with less energy consumption while
minimizing pressure variations.
The humidification process is simple: Water is converted to steam using the adiabatic process. The
dry air passes through a rigid, humid medium made of corrugated sheets of non-organic fibers. The
air is thus cooled and humidified.
Note that if cold water below 20°C is chosen, the EvaPack TM will ensure that microorganisms do not
grow (hygienic installations).
The design of the EvaPack TM series provides easy access to the humidifier cassettes and quick and
easy removal for maintenance purposes.