The specific application of spray cotton in air filters can draw the following conclusions from its characteristics, materials, properties, structure and application fields: 

 Features of spray cotton products: 

 1. High-efficiency filtration: Spray cotton can effectively capture and filter particles and dust in the air and reduce impurities in the air. 

 2. The filtration effect lasts for a long time: the spray cotton has been specially processed, with high fiber density and strong adsorption ability, and can maintain an efficient filtration effect for a long time. 

 3. Moisture absorption: Spray cotton has a certain moisture absorption, which can absorb moisture from the air and maintain the humidity balance of the air. 

Material of spray cotton products: 

The main materials of spray cotton are polyester fiber and non-woven fabrics. Among them, polyester fiber is a synthetic fiber with high strength and elasticity, which can provide good filtration performance; non-woven fabric is a nonwoven material with high fluffy and porous properties, which can provide good adsorption ability. 

Performance of spray cotton products: 

1. Filtration efficiency: Spray cotton has a high filtration efficiency, which can effectively block and adsorb particles and dust in the air and reduce the content of impurities in the air. 

2. Filtration capacity: Spray cotton has a large filtration capacity, which can accommodate more particles and dust, thus extending the service life of the filter. 

3. Airflow resistance: Spray cotton can effectively reduce airflow resistance, improve air circulation efficiency, and provide a more comfortable and healthy air environment for the indoor environment. 

4 It mainly filters dust particles greater than 5μm, and the filtration grade is G1, G2, G3 and G4. It is generally used as a place in direct contact with outdoor air such as prefiltration or coarse filtration at the suction inlet of ventilation equipment and air control systems. 

Structural of spray cotton products：

The principle of spray cotton structure is to spray the adhesive on both sides of the fluffy fiber layer. Because of the pressure during spraying and the suction of the lower vacuum, the adhesive can also penetrate into the interior of the fiber layer. After spraying the adhesive, the fiber layer is dryed and cured, so that the junction points between the fibers are bonded to each other, and the fibers that are not bonded to each other still have considerable space. 

Application field of spray cotton products: 

It is suitable for various air purification fields of ventilation and air conditioning systems such as spraying industry, electroplating industry, exhaust gas treatment, building ventilation, pollution prevention, public construction air conditioning industry, household appliance industry, automobile industry, motorcycle manufacturing, electronics industry, clock industry, pharmaceutical factory, food industry, packaging materials, furniture industry, decoration engineering, etc. 

Therefore, spray cotton is widely used in air filters, especially in some places with high air quality requirements, such as hospitals, laboratories, office buildings, etc. It can effectively improve indoor air quality and protect people's health.

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