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Micro-dust

Home air quality

Home air quality

The first element to consider when talking about micro-dust is the quality of the air we breathe in our homes. The pollutants present inside our homes are the same as those present outside, and enter by filtering through the ground or through the air. But there are also pollutant sources inside the building itself. Often the values of pollutants inside a building are very high due to two factors:

  1. Poor air exchange with the outside (and therefore these pollutants tend to accumulate);

  2. Inability of equipment or appliances to push pollutants (e.g. micro-dust) outdoors.

Gli inquinanti dell’aria indoor possono, infatti, presentarsi sotto forma di gas, vapori o di particolato. Scendendo nel dettaglio, per particolato si intendono: il pulviscolo atmosferico, le polveri sottili, le polveri totali sospese (PTS). Tutte queste “polveri” identificano all substances suspended in the air: fibres, carbon particles, metals, silica, liquid or solid pollutants. These particles can be inorganic or organic in nature. They include: dust, pollen, animal allergens, asbestos, glass fibres, combustion particles, fungal spores, etc.

Health effects

Health effects

Micro-dust, also known as fine dust, is very dangerous because it is very small, with diameters of less than 2.5 microns. They are so small that they are not retained by the nose or bronchi. They enter the bloodstream directly and within forty minutes of inhalation reach all the organs of the body.

In addition, they bind to heavy metals and bacteria in the air, causing them to enter the body. Therefore, these fine particles should always be expelled from the building we are in. According to studies by the World Health Organisation, the increase in fine dust in the air causes an increase in daily mortality.

Micro-dust, also known as fine dust, is very dangerous because it is very small, with diameters of less than 2.5 microns. They are so small that they are not retained by the nose or bronchi. They enter the bloodstream directly and within forty minutes of inhalation reach all the organs of the body.

In addition, they bind to heavy metals and bacteria in the air, causing them to enter the body. Therefore, these fine particles should always be expelled from the building we are in. According to studies by the World Health Organisation, the increase in fine dust in the air causes an increase in daily mortality.

How they get into the house and what they are made of

How they get into the house and what they are made of

As mentioned, they filter through the ground or through the air and enter homes carried by the wind or simply by air currents created by temperature variation.

But there are also pollutant sources inside the building itself. Micro-dust is made up of different types of pollutants that can be divided into three macro-categories: mites; pollen; bacteria and viruses.

The omnipresent: the mite

The omnipresent: the mite

The dust mite is a microscopic spider about 0.3 mm long. One teaspoon of dust contains on average almost 1,000 mites and 25,000 balls of excrement. The main allergen, which can trigger the allergy, is the mite's droppings. (In one day, each mite can produce 40 tiny balls of excrement).

The mite needs a warm, moist, light-free environment to live and reproduce. Our bed is certainly a favourite environment. It feeds, in particular, on flakes of human and animal skin, and the excrement, which triggers the allergy in humans, is distributed in micro-dust and thus inhaled. The main symptoms of dust mite allergy are a congested nose, sneezing, cold, red eyes.

It can be treated by reducing the presence of micro-dust in the home as much as possible.

The dust mite is a microscopic spider about 0.3 mm long. One teaspoon of dust contains on average almost 1,000 mites and 25,000 balls of excrement. The main allergen, which can trigger the allergy, is the mite's droppings. (In one day, each mite can produce 40 tiny balls of excrement).

The mite needs a warm, moist, light-free environment to live and reproduce. Our bed is certainly a favourite environment. It feeds, in particular, on flakes of human and animal skin, and the excrement, which triggers the allergy in humans, is distributed in micro-dust and thus inhaled. The main symptoms of dust mite allergy are a congested nose, sneezing, cold, red eyes.

It can be treated by reducing the presence of micro-dust in the home as much as possible.

Where can they be found?

Furnishing fabrics

Pillowcases, blankets, curtains and any fibre covering

Carpet

Carpet is the perfect receptacle thanks to its dense, fibrous weave

Beds, cots, sofas

They are also deposited and enter through our use

Invisible

Totally invisible to the naked eye, 150 species exist

Where can they be found?

Furnishing fabrics

Pillowcases, blankets, curtains and any fibre covering

Carpet

Carpet is the perfect receptacle thanks to its dense, fibrous weave

Beds, cots, sofas

They are also deposited and enter through our use

Invisible

Totally invisible to the naked eye, 150 species exist

The nuisances: pollen

The nuisances: pollen

Pollens are the male reproductive cells of plants with flowers. According to statistics, 30-35% of people are allergic to them. Due to their size, which varies between 15 and 200 micrometers, they can very easily penetrate indoor environments by air or transported by shoes, clothing, animals or objects.

During flowering periods the concentration of pollen indoors is considerably lower than outdoors; on the contrary, it can often be higher in winter because pollen stagnates with dust inside buildings. Windows should only be opened at night, when the concentration of pollen in the air decreases significantly.

The main health effect caused by pollen is its specific allergy, which in this case is called pollinosis. This problem is triggered when the pollen concentration reaches a certain threshold and is characterised by a whole series of very clear symptoms: conjunctivitis, inflammation of the respiratory tract, coughing, sore throat, asthma, continuous discharge from the nose, etc.

Indoor environments can, in some cases, be a real refuge for all those who suffer from pollinosis, provided that a low concentration of pollen can be maintained inside. Having an extraction system capable of expelling dust, micro-dust and therefore pollen outside the indoor environment can be a valid remedy against allergies.

Additional information

Pollinosis is a seasonal allergic disease caused by sensitisation to pollen. The period in which it occurs depends on the type of pollen to which one is sensitive and its concentration in the atmosphere.

The allergic reaction occurs seasonally, corresponding to the pollination period characteristic for each species responsible for the allergy.

The invisibles: viruses and bacteria

The invisibles: viruses and bacteria

Viruses and bacteria are small pathogenic organisms that enter the human body and can cause illness, both serious and less serious, by overcoming the immune system and reaching various sensitive organs. They vary in size: some viruses, among the smallest known pathogens, are a few millionths of a millimetre in size and reach the upper respiratory tract without any problems.

They live from a few hours to a few days. Their presence outside the human body depends on the structure of the pathogen and its ability to form resistance structures, such as biofilms.

Airborne dust and aerosols can carry pathogens, which are emitted by infected individuals while talking, breathing, coughing and are deposited in the environment.

When you come into contact with viruses or bacteria, you may experience malaise, weakness and fever that appear as a result of a general state of inflammation. For example, when considering the respiratory system, both viral and bacterial infections most often lead to pain and inflammation in the mouth and throat, larynx, trachea and bronchi, with possible cough and fever.

Finally, in buildings there are essential facilities that ensure the well-being and life of the spaces. Rooms are made to be lived in. Forgetting the importance of daily cleaning and its role in protecting health is an unforgivable mistake. The central hoover is the fundamental system for all buildings, both domestic and working, that guarantees the healthiness of the environments by expelling micro-dust, mites, allergens, pollutants, bacteria and viruses with ordinary cleaning.

Viruses and bacteria are small pathogenic organisms that enter the human body and can cause illness, both serious and less serious, by overcoming the immune system and reaching various sensitive organs. They vary in size: some viruses, among the smallest known pathogens, are a few millionths of a millimetre in size and reach the upper respiratory tract without any problems.

They live from a few hours to a few days. Their presence outside the human body depends on the structure of the pathogen and its ability to form resistance structures, such as biofilms.

Airborne dust and aerosols can carry pathogens, which are emitted by infected individuals while talking, breathing, coughing and are deposited in the environment.

When you come into contact with viruses or bacteria, you may experience malaise, weakness and fever that appear as a result of a general state of inflammation. For example, when considering the respiratory system, both viral and bacterial infections most often lead to pain and inflammation in the mouth and throat, larynx, trachea and bronchi, with possible cough and fever.

Finally, in buildings there are essential facilities that ensure the well-being and life of the spaces. Rooms are made to be lived in. Forgetting the importance of daily cleaning and its role in protecting health is an unforgivable mistake. The central hoover is the fundamental system for all buildings, both domestic and working, that guarantees the healthiness of the environments by expelling micro-dust, mites, allergens, pollutants, bacteria and viruses with ordinary cleaning.

Why is the household appliance a risk factor?

Cordless brooms, robots and conventional hoovers are not healthy. Place your hand behind your appliance,
you'll hear a hot vent and smell burning dust. When you hear it, it's too late!

That air is full of micro-dust that circulates back into the environment and is breathed in by you and those living in the environment.

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