Background on inhalation – Inhalation naturally moistens

Background on inhalation therapy

Did you know that your lungs can clean themselves? If this mechanism is impaired, nebulising saline solution, for example, can reactivate it.

Nebuliser therapy as a support for your lungs

Lungs are complex organs with considerable surface area. Spread out, they would cover an area the size of a tennis court. They also have some remarkable features.

  • The self-cleaning mechanism of the lungs keeps us safe from a host of diseases.
  • If this mechanism is impaired, we fall ill.
  • How nebulisers differ from each other and which droplet size is best for which patient.

How our lungs clean themselves and what scavenger cells are

Our airways have a very good filter – the self-cleaning mechanism: Large particles of dirt get stuck in the nose and are blown out. All our airways have mucous membranes and fine hairs called cilia. In healthy people, foreign bodies like viruses and bacteria stick to the mucous membranes. The beating motion of the cilia transports foreign bodies towards the throat. If the foreign bodies are very small and reach the smallest branches of the lungs (the alveoli) the lungs are cleaned with the aid of macrophages. Macrophages are part of our immune system and are also called scavenger cells or phagocytes. Foreign bodies and pathogens are detected, engulfed, broken down by enzymes and rendered harmless.

What happens if the cleaning mechanism is impaired

In the winter, for example, when central heating is turned up full blast, the mucous membranes can dry out. This impairs the natural self-cleaning mechanism of our airways. If the protective moisture film is missing, we can catch a cold because viruses and bacteria can reach the mucosal cells more easily. This is why it is advisable to nebulise an isotonic saline solution to prevent colds (link to inhalation solutions). This re-moistens the airways, helping to remove pathogens; it can also have a positive impact during pollen season. But too much mucus is also a problem. The fine hairs then cannot remove viruses and bacteria as effectively. In this case, nebulising hypertonic saline solutions can help to liquefy the mucus. This also supports the lung’s natural cleaning mechanism.

Aerosol – soothing fine mist from the nebuliser

To allow the isotonic or hypertonic saline solution or medication mixture to have the desired effect, a PARI nebuliser produces very fine droplets. This aerosol, as it is called, is directly absorbed via the mucous membranes. Whether the aerosol acts in the nose, the sinuses or the lungs depends on, among other factors, its size. Larger droplets only get to the upper airways (the mouth, throat, the larynx or the nasal region). Smaller and finer droplets on the other hand, can get deep into your lungs.

What the colours of the nebuliser inserts mean

The nebuliser chamber is what actually generates the aerosol, so it is the most vital component of the entire nebuliser system. To ensure that the aerosol has the optimum effect at a certain site, such as the sinuses or the lungs, a specific aerosol has to be generated. The nebulisers from the PARI LC SPRINT family are fitted with nozzle attachments in a range of colours. Each colour generates a different droplet size adjusted to the age group or the clinical condition.


The following nozzle attachments are available:

Yellow nozzle attachment

The yellow nozzle attachment delivers an especially fine aerosol for the small airways and for the treatment of babies and children.

This nebuliser:
PARI LC SPRINT Junior Nebuliser

Red nozzle attachment

Extra-fine droplets specifically for babies and young children(supplied with the PARI LC SPRINT BABY) and also for the peripheral areas of the lungs (supplied with the PARI LC SPRINT STAR)

This nebuliser:

Orange nozzle attachment

In combination with a pulsing feature, the orange nozzle attachment delivers an ideal aerosol spectrum for efficient deposition in the sinuses.

This nebuliser:

Blue nozzle attachment

The blue nozzle attachment delivers droplets for efficient deposition in the central region of the lungs in older children and adults.

This nebuliser:

MucoClear Inhalation Solution


Hypertonic inhalation solutions with a high salt content can loosen mucus.

Go to Inhalation solutions

Indications for nebuliser therapy

From colds to severe respiratory diseases – nebuliser therapy is a gentle and effective treatment method. Nebuliser therapy is tried-and-tested for chronic respiratory diseases and is becoming an increasingly common treatment for colds.

Read more about the indications for nebuliser therapy

PARI Product Guide

Product guide

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Where to buy a PARI device

Contact our branch offices for information on where to buy our products .....

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PARI NaCl Inhalation Solution

PARI NaCl Inhalation Solution

Bring soothing sea air into your living room. Thanks to modern nebuliser devices and saline solutions from PARI.

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Contact us

Any questions? You can reach us at this number: 
01932 341122