• Dust removal: particles less than 1 micron in sample gas can be removed by external and internal filters.
• Ammonia removal: ammonia filter is built in the machine, and ammonia gas which may damage the drying pipe in the sample gas can be removed through the ammonia removal filler which can be replaced regularly, so as to prolong the service life of the equipment.
• Water removal: through the built-in two different types of Nafion drying tubes, combined with dynamic heating and purging gas system, the removal of gaseous moisture can be realized, and the gaseous pollutants can be well retained.
• Nafion drying tube technology: the international advanced Nafion drying tube dehumidification technology can effectively remove water molecules and effectively retain the gas to be measured.
• Whole process heat tracing: from sampling to the inlet end of drying pipe inside the equipment, the heating and heat preservation method is adopted, and there is no dead angle in the whole process, so as to prevent condensation water from appearing anywhere.
• Large screen display: 6.5 inch large color touch screen display, easy to operate.

The function can effectively remove smoke, acid fog and aerosol in the sample gas, and selectively remove the gas moisture in the sample gas, and retain the gaseous pollutants to be detected completely. The instrument has the advantages of short preheating time, simple operation, easy to carry and good dehumidification effect. It is mainly used for flue gas sampling pretreatment in heavy and high pollution industries such as thermoelectricity, chemical industry, electronics, iron and steel, etc. It provides reliable guarantee for accurate measurement of flue gas analyzer under ultra-low emission conditions.