Background on inhalation – Inhalation naturally moistens

Background on inhalation

Did you know that your lungs can clean themselves? If this mechanism is impaired, inhalation with 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 more easily reach the mucosal cells. This is why it is advisable to perform inhalation with an isotonic saline solution to prevent colds. This re-moistens the airways, helping to remove pathogens; this can also have a positive impact during pollen season. But too much mucus is also a problem. The fine hairs then cannot as effectively remove viruses and bacteria. In this case, the inhalation of hypertonic saline solutions can help to liquefy the mucus. This also supports your natural cleaning mechanism. 

Aerosol – soothing fine mist from the inhalation device

To allow the isotonic or hypertonic saline solution or medication mixture to have the desired effect, the PARI nebuliser, in combination with the inhalation device, 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, such as those produced by the PARI XLent, only get to the upper airways, the mouth or throat, the larynx or the nasal region. Smaller and finer droplets on the other hand, such as those produced by the nebuliser for the PARI BOY Junior , can get deep into your lungs.

What the colours of the nebuliser inserts mean

The nebuliser is what actually generates the aerosol, so it is the most vital component of the entire inhalation 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: 

Transparent nozzle attachment

To ensure active substances are optimally delivered to the upper airways, such as the throat, larynx and the trachea, extra large aerosol droplets are needed. The PARI XLent nozzle attachment generates these “XL droplets” and produces an ideal aerosol spectrum for the treatment of croup, pharyngitis or laryngitis, for instance.

This nebuliser features:
PARI LC SPRINT XLent Nebuliser

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 features:
PARI LC SPRINT Junior Nebuliser

Red nozzle attachment

Extra-fine droplets specifically for babies and young children in the obstructive phase – supplied, for instance, with the PARI BOY Junior. The red nozzle attachment is also supplied with the PARI BOY Pro to reach the finest structures of the lungs, specifically for COPD patients.

This nebuliser features: 

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 features: 

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 features:

MucoClear Inhalation Solution


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

Go to inhalation solutions

Indications for inhalation

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

Read more about the indications for inhalation


Product guide

Go to product guide


On our regularly updated blog you will read fascinating interviews, reports from patients and current issues presented in an easy-to-understand way.

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PARI NaCl Inhalation Solution

NaCl 0,9% Inhalation Solution

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

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