If you take a vacuum cleaner from a modern woman, she will say that cleaning the house is impossible. But before, our grandmothers did without this miracle device, and in their homes it was no dirtier than modern housewives. Is civilization so spoiled for us?
No, the fact is that cleaning with a modern vacuum cleaner is very effective. With it, you can remove dust from any surface, and, most importantly, it does not fall back into the room.
Today, manufacturers of household appliances from different countries offer a huge number of models of vacuum cleaners. The most expensive of them are equipped with fine filters. What kind of device is this and what is it for?
The HEPA filter is designed for fine cleaning and retention of microparticles. Initially, these devices were developed to equip the ventilation system in hospitals, medical centers and where increased air purity is required. This technology is widely used in the West; it is widely used in the manufacture of air cleaners and vacuum cleaners.
Before devices of this type, manufacturers of vacuum cleaners install several more coarse filters that hold larger dust particles. HEPA filters can trap microparticles up to 0.3 microns in size and prevent them from entering the air. It should be noted that such particles are the cause of many diseases and allergic reactions. Therefore, asthmatics and allergy sufferers need to install a HEPA filter on the vacuum cleaner.
They are of two types - disposable and reusable (washable). Disposable filters are made of paper, and reusable (they are much more expensive) are made of fiberglass or fluoroplastic. The latter can be washed and continue to operate. Despite the relatively high prices, a reusable HEPA filter after two years of use will have to be replaced. Filters of this type are used in small portable household vacuum cleaners. In order to save them, they are made in size of 50-200 cm square. When the HEPA filter reaches 20-25% of its service life, its efficiency is reduced to 80% of the initial level.
Particularly noteworthy is the material from which the casing of the device is made. The main condition for its good work is a snug fit to the block. If there is no airtight seal between the housing and the filter, then its efficiency will be zero.
All HEPA filters are divided into classes. In accordance with the international classification, they are assigned numbers from 10 to 14. The larger the model number, the more efficient its operation.
Some versions of modern vacuum cleaners already have a HEPA filter, others have the ability to install it.
Manufacturers often use the expression “like HEPA” or “like HEPA” to promote their technology, which can be confusing for consumers.
You can buy a replacement HEPA filter in all stores selling household appliances of this level, or order on the official website of the manufacturer.
Many buyers are worried about this problem: whether in a few years, replaceable HEPA filters suitable for their vacuum cleaner model will disappear from the sale. We can reassure you: manufacturers produce universal options that will suit many models.