Advertising - not always on the consumer side
The advertising industry and the sellers themselves are, of course, focused on maximizing their sales. This often limits are exceeded and suggests benefits that are not or only conditionally. A good example is the application of steam cleaners, which allegedly help against mites.
Humidifier is not necessarily suitable for house dust
A similar phenomenon exists with humidifiers. Some providers (especially special sites on the Internet that generally advertise a product group, often packaged as alleged tests) then list properties that are not necessarily applicable. This is, for example, the use of a humidifier against house dust. There are even two aspects that deserve special consideration. But more on that later.
A conventional humidifier can even increase the load
First of all, the answer to whether humidifiers are suitable for dust is largely in the description. Humidifiers increase the humidity, but they do not necessarily clean them. That would possibly be the air shower or specifically the air purifier. Pure humidification can even significantly increase a dust problem.
For this we want to give an example from other regions of our world where there is a very high level of humidity - the tropics. Those who spend more time in the tropics will probably use a fan for cooling. If this is used on a daily basis, heavy soiling on the edges of the sashes and on the protective grilles often appear after a few days. By contrast, the same intensity of use in Germany causes significantly less pollution.
Why is that? Very easily. The high humidity acts as an adhesive on dirt and dust particles. Dust particles are bound in the air by the water droplets. You can also experience this effect in this country. For example, after a thunderstorm. Before, the air is stuffy and it is humid. Immediately after the heavy rainstorm the air is literally clean and clear (before the rain evaporates again, so in a short time window). Because the rain absorbs the pollution and carries it to the ground.
You need a humidifier with HEPA filter against house dust
So you need an air purifier or a humidifier with a suitable filter. These special filters are divided into the following types:
EPA filters (Efficient Particulate Air filters)
- HEPA filters (High Efficiency Particulate Air Filters) ULPA filters (Ultra Low Penetration Air Filters)
- These HEPA filters are also efficient for house dust allergies
- Anyone who suffers from a house dust allergy is actually allergic to mites and their deposits. These include mite eggs and excretions. These precipitates can be separated by a corresponding HEPA filter. Depending on the design and quality, aerosols, dust, dirt and smoke particles can also be filtered. Even bacteria and viruses can be separated with efficient filters.
Only select standardized filters and certified humidifiers
Important is the filter design. According to the EU, there are 17 classes. The higher the grade, the smaller the particle size that is filtered. For this, the filters must comply with the standard EN 1822-1: 2009. If you also want to filter house dust with a humidifier, you need a device with a "true" HEPA filter of the appropriate classification.
Tips & TricksWe point out, because we are already back to the problem with the application of equipment. Many devices - including vacuum cleaners - are, according to the advertising statement with a corresponding HEPA filter equipped. However, there are no real constraints outside the clean room regulations.
If you want a humidifier with a standardized HEPA filter against house dust, you must pay attention to the certification and quality seal of the device. For well-known manufacturers, you can assume that the technical details are correct - but this also defines the slightly higher prices.