Why is humidification important?

Medical gases are usually cold and dry (≤15oC, <2% relative humidity) compared to atmospheric air (22oC, 50% relative humidity). The administration of these gases is associated with dehydration, decreased temperature, inflammation of the airway epithelium, and increased risk of trauma. Insufficient moisture can slow down the elimination of secretions, causing blockages in the airways. These effects are amplified in premature infants, for whom studies have shown that just a few minutes of ventilation with low humidity causes increased airway resistance, reduced lung compliance, increased risk of air loss, and the need for additional oxygen.

  • The administration of heated and humidified medical gases contributes to the elimination of secretions
  • Assists the natural airway defense mechanism
  • It protects the energy resources needed for the growth and development of the newborn
  • In the case of newborns, energy is vital for growth and development. By facilitating thermoregulation, this energy is protected.
  • Improves patient comfort and tolerance to therapy
foto - Umidificare

A single system that can be used for the full range of Fisher & Paykel Healthcare respiratory support therapies, from high flow nasal and CPAP to mechanical ventilation is simple to operate and set, thanks to the easy interface and easy-to-read display.
The optimal level of temperature and humidity can be set with a single button for both newborn and pediatric or adult patients.

  • The alarm system is based on clinical principles.
  • Algorithms detect flow to optimize humidity and reduce alarms.
  • Automatic standby for patient safety.

Humidity level

From the respiratory system of the newborn, it is decisive for maintaining the physiological balance, supporting the natural defense mechanisms, and conserving the energy necessary for growth and development. The benefits of humidified and heated medical gas for any form of respiratory support are well known from medical research and practice.

Absolute humidity

Represents the total amount of water vapor in a given volume of gas, measured in mg / L.

Relative humidity

The amount of water vapor that can be retained in a gas increases with the temperature of that gas, which is why hot gases retain more water than cold ones.

Temperature affects humidity

The amount of water vapor that can be retained in a gas increases with the temperature of that gas, which is why hot gases retain more water than cold ones.

Particle size

Water vapor particles, unlike water droplets, are too small to carry viruses or bacteria. Humidification and heating systems generate such vapors.

Assists natural airway defense mechanisms:

Primary defense system:

Reflexes such as coughing and sneezing. In premature infants, these mechanisms may be underdeveloped.

Mucociliary transport

The second line of defense: mucus isolates and removes inhaled contaminants from the airways. The effectiveness of this system depends on several factors, including the temperature and humidity of the inspired gas.

The lower the humidity of the inspired air, the more it must descend into the respiratory tract to be heated to physiological temperature and humidity.

It protects the energy resources needed for the growth and development of the newborn

Newborns are exposed to heat stress and the risk of losing heat. In the case of premature babies, the ability to generate heat is limited, while the need to conserve vital energy resources is high.

Newborns need the energy to grow and grow, and supporting thermoregulation supports these efforts.

The administration of humidified gases is important to conserve this energy. When low humidity levels are inhaled, water vapor is attracted to the airway mucosa until the temperature of the inhaled gas reaches 37 ° C, 44 mg / L. The energy consumed by the newborn for each gram of water removed from the mucosa is 0.58 kCal (2.4 kJ).

Improves patient comfort and tolerance to therapy

The available information is mainly for adult patients, but the principles also apply to pediatric patients.

Moisture is especially associated with the elimination of secretions and the prevention of airway dehydration, which can later improve lung compliance and the effort associated with breathing (work of breathing).

Fisher & Paykel Healthcare is one of the leading manufacturers of devices and systems used in non-invasive ventilation. In 1971 Fisher & Paykel launched the first humidification system for ventilation circuits, dedicated to acute patients in Intensive Care.

After this moment, they continued to develop new products for adult intensive care and neonatology, constantly focusing on innovation and collaboration with elite specialists in the field.

Over the past 50 years, thousands of healthcare professionals around the world have contributed to the design, design, and improvement of Fisher & Paykel Healthcare products.

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