Characteristics and filtration methods of medium-effect filters

Characteristics and filtration methods of medium-effect filters

Selection points for medium efficiency filters.

1. The main control parameters for the selection of medium-effect filters are the rated air volume, the filtration efficiency under the rated air volume, the initial resistance under the rated air volume, the dust capacity and the external dimensions.

2. According to the method stipulated in JG/T22-1999 General Ventilation Filter Performance Test Method, the air dust counting efficiency of particles with particle size ≥1.0μm is ≥20% and <70% filters are medium efficiency air filters.

3. Commonly used filter materials for medium-effect filters include glass fiber, non-woven fabrics and so on.

4. The manufacturer shall provide the dust holding capacity of the filter.

5. The initial resistance of the medium-effect filter is ≤80 Pa. When designing, the final resistance is 2 times of the initial resistance, which is the resistance calculated by the filter.

6. The initial resistance of the filter shall not exceed 10% of the resistance of the product sample. after regeneration and cleaning of renewable or washable filter material, the efficiency shall be less than 85% of the original index and the resistance shall be less than 115% of the original index.

7. The filter should meet the fire prevention requirements, and the highlight of the air filter coating should not be lower than 163°C. 8. The medium efficiency filter is not suitable for independent use, and should be used in combination with the low efficiency air filter.

Medium efficiency filters filter air in this way as follows

1. Multiple medium-effect filters can prevent airborne dust and bacteria from entering the room. Multiple activated carbon filters can effectively intercept dust and bacteria, filter the air and ensure that the air entering the room is clean.

2. Intermediate filter titanium oxide anti-virus - Reduce the pollution of organic toxic gases (such as formaldehyde and benzene) in indoor air. Nano titanium dioxide filters air through UV activation, effectively decomposing organic toxic gases such as formaldehyde and benzene in the air. Radioactive pollution.

3.Medium Efficiency Filter Negative Ion Oxygenation - Adds oxygen to the indoor air to the proper amount and maintains a stable level. Negative ion generators add oxygen to the indoor air to ensure that the air entering the house is oxygenated and energized, and to enhance air filtration.

4.Medium Efficiency Filter PTC ceramic heating heats the indoor air to a comfortable temperature.PTC ceramic heating plate preheats the fresh air that enters the room in winter, raising the indoor temperature appropriately and filtering the air to make the house warm and comfortable.

5.Medium Efficiency Filter UV light - can kill airborne epidemic viruses and bacteria. Ultraviolet light source can effectively kill popular viruses and bacteria in the air, keep people away from the source of infection and filter the air. Take care of the health of the whole family.