Pre Filter Box Type

About Pre Filter Box Type

The Box Type Pre Filter is a durable, high-capacity air filter engineered to capture large airborne contaminants in commercial and industrial ventilation systems. Designed with a rigid box-style frame and available in a range of filtration efficiencies, it acts as the first stage in multi-stage air filtration systems protecting downstream filters and equipment from coarse particles like dust, lint, and pollen.

Its compact, sturdy box frame ensures stability and ease of installation, making it ideal for applications requiring consistent airflow, durability, and low maintenance.

Key Features:

• Rigid Box Construction: Durable frame prevents collapse under high airflow or humidity.

• Coarse Particle Filtration: Efficiently removes dust, debris, and fibers from the air.

• Medium Efficiency Options: Available in G3 to G4 (MERV 5'8), ideal as a pre-filter stage.

• Maintenance-Friendly Design: Easy to install and replace; suitable for retrofit and new installations.

• Eco-Friendly Options: Some models available with recyclable materials.

Specifications (Typical):

• Filter Class: G3, G4 (EN 779) / MERV 5'8 (ASHRAE 52.2)

• Media: Synthetic non-woven / Glass fiber

• Frame Material: Galvanized steel / Cardboard / Plastic (depending on model)

• Thickness: 50 mm / 100 mm / 150 mm / 292 mm

• Rated Airflow: 1000  ' 3000 CFM (depending on size and depth)

• Initial Pressure Drop: 30 ' 90 Pa

• Temperature Resistance: Up to 70C (standard models)

Applications:

• HVAC systems in commercial buildings, malls, offices

• Pre-filtration in cleanrooms, laboratories, and pharmaceutical areas

• Air handling units in hospitals and schools

• Industrial ventilation and equipment protection

Frequently Asked Questions (FAQ)

Q1: What is a box type pre filter used for?

A: Its used as a primary filtration stage in HVAC systems to capture coarse airborne contaminants, helping to protect fine filters and extend their lifespan.

Q2: What is the difference between a box type filter and a pleated filter?

A: A box type filter typically has a rigid, solid frame and a deeper filter depth compared to flat pleated panel filters. This allows for higher dust-holding capacity and durability under high airflow.

Q3: What filtration grades are available for box type pre filters?

A: Most box type pre filters come in G3 or G4 ratings (MERV 58), which are ideal for capturing larger particles like dust and lint.

Q4: How often should I replace a box type pre filter?

A: Replacement intervals vary by environment, but generally every 13 months or when the pressure drop exceeds the recommended threshold.

Q5: Are these filters washable or reusable?

A: Most box type pre filters are disposable. Some models with synthetic media may be lightly vacuumed once or twice, but washing is not recommended as it may damage the filter media.

Q6: What are the advantages of the box type design?

A: Box filters are more durable than cardboard-framed panel filters, offer better airflow stability, and are ideal for systems with variable or high static pressures.

Q7: Can this filter be used in humid or high-temperature environments?

A: Yes, models with metal or plastic frames and synthetic media are suitable for moderate humidity and temperatures up to 70C. Check product specs for more extreme conditions.

Q8: Are custom sizes or frame materials available?

A: Yes. Box type pre filters can be customized in size, thickness, frame material, and media type to meet specific project or equipment requirements.