Selection rules
When choosing the optimal 3M model, several key parameters need to be taken into account:
- the expected intensity and regularity of respirator use;
- category of polluting elements;
- Terms of Use;
- concentration level of hazardous substances.
So, if you need the device a couple of times during repair or painting, then you can use the simplest one-time version with a built-in filter. But for painters, plasterers or welders, you should choose reusable respirators with replaceable double filters. To maintain their full performance, you only need to periodically purchase new replacement filters.
The operating conditions must be taken into account. So, if your activity does not imply any loads and active movements, then you can use the dimensional model with forced air supply. If during the performance of your work duties you have to move a lot, then preference should be given to lightweight models that will not interfere and cause discomfort.
It is imperative to get the right size. Remember - the device should fit quite tightly to the face to prevent the ingress of unfiltered air
But it is also impossible to allow excessive compression of soft tissues.
There are a few steps to follow before buying.
- Take measurements of your face - you will need a length from the chin to the indentation on the bridge of the nose. 3M respirators are available in three sizes:
- for face height less than 109 mm;
- 110 120 mm;
- 121 mm or more.
- Before purchasing, remove the product from its individual packaging and inspect for damage and defects.
- Try on a mask, it should reliably cover your mouth and nose.
- Check the tightness of the accessory. To do this, cover the ventilation holes with your palm and take a shallow breath. If at the same time you feel the flow of air, it is better to choose another model.
In conclusion, we note that the most reliable respirator is a high quality respirator from the manufacturer. Unfortunately, the household goods market these days is overflowing with fakes, while their low cost fully corresponds to the quality.
Model overview
3M offers a wide selection of a wide variety of respirators, which may differ in design features, contamination categories and some other parameters. Depending on the features of the model, there are:
- models with built-in filter;
- models with removable filters.
Devices of the first type are extremely easy to use, which is why they have a budget price, but have a limited period of operation. For the most part, they are classified as disposable. The second group of respirators has a slightly more complex design, therefore, its cost is an order of magnitude higher.
3M respirators are available in three versions.
The quarter mask is a petal pattern that covers the mouth and nose, but the chin remains open. This model is practically not used, since it does not provide reliable protection, and is inconvenient in operation.
3M respirators are classified according to the nature of their protection:
- filtering;
- with forced air supply.
In devices of the first type, polluted air is cleaned in a filter, but it enters directly into them due to breathing, that is, "by gravity". Such models are used in everyday life. In devices of the second category, already purified air is supplied from a cylinder.Such respirators are relevant in the conditions of industrial workshops, they are also in demand among rescuers.
The most popular 3M respirator models include.
Media models (8101, 8102). Used to protect respiratory organs from aerosol particles. They are made in the form of a bowl. Complemented with elastic bands for maximum hold around the head, as well as foam nose clips. The surface has anti-corrosion and abrasion resistance. Such respirators have found their use in agriculture, as well as construction, metalworking and woodworking.
Applications
Protective masks of the ZM brand, depending on the scope of application, can be conditionally divided into 3 categories.
Respirator for neutralization of aerosols and dust particles
It is known that dust and aerosol particles range in size from a few microns to a millimeter or even more, which is why they can be removed using conventional filtration. Anti-dust respirators contain filters made of artificial materials consisting of many thin fibers - this can be polyester fiber, perchlorovinyl or polyurethane foam.
In most cases, dust filters carry a certain amount of electrostatic charge that attracts pollutants, increasing the overall efficiency of air purification.
We pay special attention to the fact that an anti-dust respirator is able to provide high-quality protection against dust, as well as smoke and sprays. At the same time, it will not save a person from vapors and gases, will not delay unpleasant odors.
Gas respirators
Gas masks protect the user from possible gases as well as harmful vapors, including mercury, acetone, gasoline and chlorine. Such devices are in demand when carrying out painting and painting works. Vapors and gases are not particles, but full-fledged molecules, therefore it is simply impossible to keep them in any way through fibrous filters. The effectiveness of their action is based on the use of sorbents and catalysts.
It should be noted that gas filters are by no means universal. The fact is that different gases have different physical and chemical properties; therefore, the same catalyst or carbon sorbent cannot provide the same efficiency. That is why stores have an impressive selection of gas filters used to protect against certain gases and certain categories of chemicals.
Respirators for all types of air pollution
These are called gas and dust protection (combined) means of protection. Their filter includes both fibrous materials and sorbents in its structure. As a result, they are able to provide maximum protection from aerosols, dust and volatile gases at the same time. The scope of such models is as wide as possible - they are used in all spheres of industry, including nuclear power.
general description
Long ago, our grandparents noted that people working in dusty places sooner or later acquire serious pathologies of the respiratory system. Even our ancient ancestors created primitive dust protection products. Previously, their role was played by cloth bandages, which were moistened with water from time to time. In this way, the air entering the lungs was filtered. Anyone can quickly and easily make such a mask, if necessary, saving human life in an emergency.
However, a wet bandage is a necessary measure. Models of respirators are widespread these days, moreover, they have become mandatory for workers in some industries.
The 3M company has become one of the leaders in the segment of satellites production.The company's respirators are a practical design designed to maintain the safe performance of jobs involving high levels of contamination and emission of harmful gases.
Users appreciate 3M devices for their simplicity of design. There are disposable and reusable models on the market. The first ones are characterized by simplicity of design - their base is a half mask made of polymers, which also serves as a filter.
Varieties and categories of protective respirators
Personal protective equipment is not a universal product. They should be selected based on many factors.
Currently, all respirators are conventionally divided into several categories, depending on:
- appointments (medical, military, household, industrial);
- technical device (with and without valve);
- terms of use (single or reusable);
- filter type (anti-aerosol or anti-dust).
Disposable products are disposed of immediately after use, reusable products can be used for a long time due to replaceable absorbers.
According to their purpose, protective equipment is divided into respirators that protect against dust and aerosols. Filters of such products are made of fine-fiber synthetic material. The representative of this class is U2-K. A professional respirator of this brand provides a high level of protection against dust. It is used in construction work involving cutting concrete or sand-lime bricks.
The second type of products protects the respiratory system from chemical vapors (toluene, alcohol, gasoline). The most popular in this segment is the RPG-67, known to home craftsmen as an insulating gas mask. You can use this model as a respirator for repairs when painting surfaces or working with solvents.
Combined respirators, such as RU-60M, deserve special attention. They can be considered a universal means of protection against all types of pollution: fine dust particles, gases, poisonous vapors. A suitable filter option is used for each type of work.