MB Filter products are the result of the use of the company's own production solutions, many years of experience and continuous improvement of our products. This has enabled us to develop a facepiece shape that ensures tight face adherence and comfort during prolonged use. Also, the so-called “dead area” of the mask has been minimised, reducing the concentration of carbon dioxide and moisture in the facepiece.

Every half mask has inhalation resistance. During use, the half mask becomes clogged with dust, increasing the breathing resistance. Particle filtering half masks should maintain low breathing resistance throughout their service life (one working shift). 

MB Filter protective half masks are formed with a unique method, which does not close the pores in the fabric. Using the best available materials, we have been able to achieve very low inhalation resistance (for masks without a valve – this also refers to exhalation resistance). During work that requires intense effort, exhalation resistance is as important as inhalation resistance. To this end, we have developed our own shape of the facepiece and exhalation valve. The location of the valves ensures that the air exhaled from the mouth can be easily and quickly evacuated from the particle filtering half mask. The combination of these solutions ensures optimum air circulation inside the facepiece of the half mask, and it minimises the undesired heat accumulation in the facepiece. 

All MB Filter particle filtering half masks have been successfully tested for dolomite dust clogging.

Particle filtering half masks should be selected depending on aerosol concentration in the workplace. To select a correct protective half mask, it is necessary to identify the type of pollutants in the workplace and determine the multiple of the TLV. The protective class of the equipment depends on the multiple of TLV. The greater the multiple of TLV, the greater the required protection rating of the filtering half mask.