• The filtration efficiency for >5.0um particles is 40%~60%;

• Adopting special bulky type high flux and low resistance chemical fiber cloth as filter material, with large dust holding capacity;

• There are galvanized steel plate and aluminum alloy outer frame;

• The outer frame adopts removable design, which is convenient to replace the filter material to achieve the purpose of frame reuse;

• Polyester synthetic fiber filter material with low initial resistance;

• Different thicknesses of 2 inches (46mm) and 4 inches (96mm) are available, and both 2 inches and 4 inches are pleated;

• Recommended operating temperature: <80°C;

• Coarse, medium, high, medium and high efficiency, sub-high efficiency, high efficiency, ultra-high efficiency 6 kinds of filters have their own purposes, must be used correctly, if not used properly, not only will not work but also produce bad or even the opposite effect. Therefore, the design, construction and maintenance management of cleanrooms should pay special attention to the personnel.

• Coarse filter is used as a pre-filter, generally set up in the air conditioning box, its role is to filter large particles of particles, in order to protect the subsequent air conditioning equipment (such as the table cooler and heater, etc.) and intermediate as well as more advanced filters. Generally coarse-effect filters cannot be used as terminal filters.

• Medium-effect filter is generally located in the positive pressure section of the air conditioning box, and its role is to protect the sub-high-efficiency, high-efficiency filters and other terminal filters. It removes small and medium-sized particles ≥ 1.0µm. Generally, the intermediate filter is an intermediate filter, which can not be used as a pre-filter, nor can it be used as a terminal filter.

• High-efficiency and ultra-high-efficiency filters are used as terminal filters in purification systems. They are generally placed on the ceiling of the clean room. High-efficiency filters (HEPA) are the necessary terminal filters for cleanrooms. Ultra-high-efficiency filters are 0.1µm, class 10, class 1 or higher level cleanrooms must have terminal filters.

1. How to handle a clogged washable pre-filter?

If your washable pre-filter is clogged, first remove it from the air purifier or HVAC system. Gently shake off any loose debris and use a vacuum cleaner with a brush attachment to dislodge the larger particles. Rinse the filter under lukewarm water to remove the remaining dirt. If the clog persists, soak the filter for a few minutes in soapy water before rinsing thoroughly.

2. How to choose the right washable filter for my needs?

When choosing a washable filter, consider the following factors:

• The size of the filter and compatibility with your air purifier or HVAC system.

• The type of filtration you need (e.g., HEPA, carbon, or simple dust filtration).

• The environment in which you will use the filter (e.g., home, office, or industrial space).

Make sure to select a filter that matches both your system's specifications and your filtration needs for optimal performance.

3. What are the top-rated washable primary filters?

Some of the top-rated washable primary filters include models from popular brands such as Dyson, Honeywell, and Levoit. These filters are known for their durability, efficiency, and ease of maintenance. It’s important to read reviews and product specifications to determine which filter best suits your air quality requirements.

4. How to remove stubborn stains from a washable filter?

To remove stubborn stains from a washable filter, you can soak it in warm water with a small amount of mild detergent for 15-20 minutes. For more persistent stains, gently scrub the affected areas with a soft brush. Avoid using abrasive cleaners that could damage the filter material.

5. Are washable filters recyclable?

Washable filters are not typically recyclable due to the materials used in their construction, such as polyester or foam. However, they are designed to be reused multiple times, reducing the need for disposable filters. When they reach the end of their lifespan, check with local recycling programs to determine if they can be recycled or repurposed.

6. Do washable filters need to be replaced eventually?

Yes, while washable filters can be reused multiple times, they do eventually need to be replaced. Over time, the filter material can degrade, losing its ability to effectively trap particles. Replace the filter when it shows signs of damage or when cleaning no longer restores its performance.

7. How to check the performance of a washable pre-filter?

To check the performance of a washable pre-filter, inspect it regularly for dirt buildup and signs of wear. If you notice that the filter is clogged and cleaning it doesn't improve air flow, it may no longer be working efficiently. Some systems also have indicators to let you know when the filter is not performing optimally.

8. Can I use bleach to clean my washable filter?

It is not recommended to use bleach to clean washable filters, as it can damage the filter material and affect its performance. Instead, use mild detergent or vinegar for disinfecting purposes. Always rinse the filter thoroughly to ensure no residue remains.

9. Do washable filters require any special handling?

Yes, washable filters require careful handling. Avoid using harsh chemicals or abrasive tools that could damage the filter material. Always follow the manufacturer's guidelines for cleaning and maintenance to ensure the filter remains effective over time.

10. How often should I replace my washable pre-filter?

The frequency of replacing a washable pre-filter depends on the environment and usage. Generally, it should be replaced every 6 to 12 months, but you may need to replace it sooner if it shows signs of wear or cleaning no longer restores its performance.

11. How to maintain a washable air filter?

To maintain a washable air filter, clean it regularly by vacuuming or rinsing it with lukewarm water. Make sure the filter is completely dry before reinstalling it. Inspect the filter for any damage or wear, and replace it if necessary to ensure consistent performance.

12. How to remove a washable pre-filter for cleaning?

To remove a washable pre-filter, carefully detach it from the air purifier or HVAC system according to the manufacturer's instructions. Make sure the system is turned off before attempting to remove the filter. Handle the filter gently to avoid damaging it during removal.

13. Are washable filters suitable for people with asthma?

Washable filters can be suitable for people with asthma, especially if they are designed to capture allergens like pollen, dust, and pet dander. However, it's important to ensure that the filter provides sufficient filtration for smaller particles, as some washable filters may not be as effective at trapping fine dust and allergens as HEPA filters.

14. Do washable filters save money in the long run?

Yes, washable filters can save money in the long run, as they do not need to be replaced as frequently as disposable filters. With proper maintenance, a washable filter can last for years, offering significant cost savings over time compared to purchasing new disposable filters.

15. Can washable filters be used in industrial settings?

Washable filters can be used in industrial settings, provided they are designed to handle the specific demands of the environment. For example, washable filters used in factories or workshops may need to be more robust to handle larger debris or higher airflows. Always choose a filter rated for industrial use to ensure proper filtration.

16. Can washable pre-filters capture pet dander?

Yes, washable pre-filters are effective at capturing pet dander. They are designed to trap larger particles such as dust, hair, and pet dander. However, for maximum effectiveness, they should be used in conjunction with a finer filter, such as a HEPA filter, to capture smaller particles like allergens.