Type: Panel, Pleated and Pocket.

Media: Chemical fiber, stainless steel mesh, nylon mesh

Filter class: G1-G4

Clean air filters pressure drop: 30-50Pa

Standard depth: 10/21/46/95mm

Customized products prefered.

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In HVAC (Heating, Ventilation, and Air Conditioning) systems, coarse filters play a vital role in maintaining indoor air quality and protecting the HVAC equipment. Here's how coarse filters are used in HVAC systems:

1. **Protecting Equipment:** Coarse filters are often installed as the first line of defense in an HVAC system. They are placed before more fine or HEPA (High Efficiency Particulate Air) filters to protect sensitive HVAC components such as coils, fans, and heat exchangers from large particles like dust, debris, and insects. This helps prevent equipment damage and maintain system efficiency.

2. **Removing Large Particles:** Coarse filters are designed to capture relatively large particles, such as dust, pollen, and debris, typically in the range of 50 to 1000 microns. This initial filtration stage helps improve indoor air quality by preventing these particles from entering the indoor space.

3. **Extending Filter Life:** By capturing larger particles, coarse filters prevent fine filters from clogging prematurely. This extends the lifespan of more expensive and high-efficiency filters downstream, reducing the frequency and cost of filter replacement.

4. **Reducing Maintenance:** Coarse filters are relatively easy to maintain and replace, making it simpler for HVAC technicians to service the system. Regular maintenance of coarse filters ensures that the HVAC system operates efficiently.

5. **Improving Airflow:** Properly maintained coarse filters help maintain optimal airflow in the HVAC system. This is important for achieving the desired temperature and ventilation throughout the building.

6. **Energy Efficiency:** By maintaining clean and efficient airflow, coarse filters indirectly contribute to energy efficiency. When the HVAC system runs smoothly, it uses less energy to achieve the desired indoor conditions.

7. **Customization:** The choice of coarse filter type and size depends on the specific requirements of the HVAC system and the indoor environment. Different environments may require different levels of coarse filtration, and the filters can be customized accordingly.

Regular maintenance and replacement schedules for coarse filters are essential to ensure that they continue to perform effectively in an HVAC system and contribute to clean and well-ventilated indoor spaces.