Question 1

What is an F7 Rigid Bag Filter used for?

Accepted Answer

An F7 rigid bag filter is designed for HVAC, air handling and industrial ventilation systems that require efficient fine-particle filtration. Its rigid construction helps maintain the filter's shape and stability under demanding airflow conditions, making it suitable for applications where conventional flexible pocket filters may not be the preferred configuration.

The F7 Rigid Bag Filter can be used in commercial and industrial air handling units, ventilation systems and multi-stage filtration systems where the filter specification matches the application's airflow and performance requirements.

Question 2

What is the difference between a rigid bag and a standard pocket filter?

Accepted Answer

A rigid bag filter uses a self-supporting, rigid filter structure, while a conventional pocket filter generally uses flexible pockets. The best option depends on the installation and system requirements.

Question 3

Are other efficiency grades available?

Accepted Answer

Yes. Airguard Envirocare lists rigid bag filter options across F6 to F9 efficiency grades, subject to the required application.

Question 4

What is the difference between an F7 rigid bag filter and an F7 pocket filter?

Accepted Answer

The main difference is the filter construction.

An F7 pocket filter typically uses flexible filter pockets, while an F7 rigid bag filter uses a self-supporting or rigid filter construction. Both can provide fine-particle filtration, but they are not automatically interchangeable.

The correct replacement should match:

Filter dimensions
Frame or header design
Filter depth
Airflow
Required filtration efficiency
Pressure-drop requirements
Existing AHU or filter housing configuration

Before replacing an existing filter, compare the complete specification rather than selecting a replacement based only on the F7 classification.

Question 5

What does F7 mean on a rigid bag filter?

Accepted Answer

F7 is a filter classification commonly associated with the former EN779 air filter standard. Under modern filter classification systems, HVAC filters are commonly assessed using ISO 16890.

Therefore, when replacing an F7 rigid bag filter, it is important to check the product's actual tested performance and applicable ISO 16890 classification rather than assuming every F7-labelled filter provides identical filtration performance.

Question 6

Can the F7 Rigid Bag Filter replace an existing OEM filter?

Accepted Answer

Yes. The Airguard Envirocare F7 Rigid Bag Filter can be assessed as an OEM-equivalent or specification-matched replacement filter.

To identify the correct replacement, provide:

Existing OEM or manufacturer part number
Filter width and height
Filter depth
Airflow
Required filtration class or efficiency
Frame or header details
Existing filter photograph or technical drawing, where available

This information helps ensure the replacement filter fits correctly and meets the required air filtration performance.

Question 7

Can I provide an existing part number to find an F7 rigid bag filter replacement?

Accepted Answer

Yes. If you have an existing OEM, manufacturer or equipment part number, provide it together with the filter dimensions and available technical information.

Airguard Envirocare can assess the existing specification and identify a suitable F7 rigid bag filter replacement. A direct OEM cross-reference should only be claimed where the compatibility has been technically verified.

Question 8

Is an F7 rigid bag filter suitable for air handling units?

Accepted Answer

Yes. An F7 rigid bag filter can be suitable for commercial and industrial air handling units (AHUs) where the filter dimensions, airflow and required filtration performance match the system design.

It may be used as part of a multi-stage filtration arrangement, potentially alongside upstream pre-filters or downstream higher-efficiency filtration, depending on the required air quality and HVAC system configuration.

Question 9

Can F7 rigid bag filters be supplied in custom sizes?

Accepted Answer

For non-standard HVAC or industrial installations, custom or specification-matched F7 rigid bag filters can be assessed based on the required:

Width × height × depth
Frame or header construction
Airflow
Filtration efficiency
Pressure-drop requirements
Application and operating environment

Providing a drawing, photograph or sample of the existing filter can help ensure accurate replacement matching.

Question 10

What environmental conditions are suitable for F7 Rigid Bag Filter?

Accepted Answer

F7 Rigid Bag Filter should be selected according to the environmental conditions stated in its product specification, including factors such as dust, moisture, salt, humidity, temperature and airborne contamination where applicable. The installed system and required filtration performance should be checked before selection.

Question 11

Why is Airguard Envirocare's F7 Rigid Bag Filter an alternative to Altair?

Accepted Answer

Where F7 Rigid Bag Filter is identified as Altair-compatible, Airguard Envirocare positions it as an OEM-equivalent or specification-matched replacement. Exact compatibility should be confirmed against the installed filter's part number, dimensions and required performance. The available FAQ material does not identify a specific gas-turbine air intake system for this product; use it only where its published dimensions, airflow and filtration requirements match the installed system.

Question 12

Can you provide technical information for F7 Rigid Bag Filter?

Accepted Answer

Yes. Airguard Envirocare can provide available technical information for F7 Rigid Bag Filter, including technical datasheets, technical drawings and other relevant information on request.

Question 13

What is the origin of F7 Rigid Bag Filter?

Accepted Answer

The stated manufacturing origin is the United Kingdom.

Question 14

What is the lead time for F7 Rigid Bag Filter?

Accepted Answer

Depending on the product, order requirements and delivery location, F7 Rigid Bag Filter can be delivered in approximately 2 to 7 working weeks.

Question 15

Will using F7 Rigid Bag Filter void our gas turbine warranty?

Accepted Answer

Use of an alternative filter should not be described as automatically voiding a gas turbine warranty. Warranty terms are set by the turbine OEM and the applicable contract, so customers should confirm the requirements with the OEM or operator before installation. Where this product is used as an OEM-equivalent replacement, its dimensions and performance specification should be verified for the specific installation.

Question 16

Does F7 Rigid Bag Filter have a manufacturer warranty?

Accepted Answer

Yes. Airguard Envirocare offers a 12-month manufacturer warranty for F7 Rigid Bag Filter.

Attribute	Detail	Specification	Value
Brand	Airguard Envirocare	Flow Rate	n/a
Division	Filtration	Filter Efficiency Rating	n/a
Industry	HVAC Commercial & Industrial	Operating Temperature	n/a
Application	Office, Hotels, Hospitals, Data Centers, Food Industry, Pharmaceuticals, Buildings	Height	n/a
Technology	n/a	Width	n/a
Product Type	Rigid Bag / V-Cell Filters	Depth	n/a
Product Style	HVAC Filter	Outside Diameter	n/a
Media	n/a	Inside Diameter	n/a
Materials of Construction	n/a	Weight	n/a
Classification	n/a	Non-standard Size	n/a

Nominal Size (mm)	Actual Size (mm)	Capacity (m³/s)	Media Area (m²)	Initial (Pa)	Final (Pa)
300 x 600 x 300	287 x 592 x 292	0.59	9.50	100	500
500 x 600 x 300	490 x 592 x 292	0.98	15.00	100	500
600 x 600 x 300	592 x 592 x 292	1.18	19.00	100	500

Nominal Size (mm)	Actual Size (mm)	Capacity (m³/s)	Media Area (m²)	Initial (Pa)	Final (Pa)
300 x 600 x 300	287 x 592 x 292	0.59	9.50	115	500
500 x 600 x 300	490 x 592 x 292	0.98	15.00	115	500
600 x 600 x 300	592 x 592 x 292	1.18	19.00	115	500

Nominal Size (mm)	Actual Size (mm)	Capacity (m³/s)	Media Area (m²)	Initial (Pa)	Final (Pa)
300 x 600 x 300	287 x 592 x 292	0.59	9.50	125	500
500 x 600 x 300	490 x 592 x 292	0.98	15.00	125	500
600 x 600 x 300	592 x 592 x 292	1.18	19.00	125	500

Nominal Size (mm)	Actual Size (mm)	Capacity (m³/s)	Media Area (m²)	Initial (Pa)	Final (Pa)
300 x 600 x 300	287 x 592 x 292	0.59	9.50	155	500
500 x 600 x 300	490 x 592 x 292	0.98	15.00	155	500
600 x 600 x 300	592 x 592 x 292	1.18	19.00	155	500

F7 Rigid Bag

Product Overview

Construction

Technical Specifications

Size Table ISO 16890 ePM10 75% (EN779:2012 F6)

Size Table ISO 16890 ePM10 90% (EN779:2012 F7)

Size Table ISO 16890 ePM10 60–65% (EN779:2012 F8)

Size Table ISO 16890 ePM1 80% (EN779:2012 F9)

Applications

Industrial Sector

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How It Works

Get in Touch

Expert Consultation

Fast Quotation

Precision Manufacturing

Reliable Delivery

Get in Touch

Expert Consultation

Fast Quotation

Precision Manufacturing

Reliable Delivery

Get in Touch

Expert Consultation

Fast Quotation

Precision Manufacturing

Reliable Delivery

Frequently Asked Questions

1What is an F7 Rigid Bag Filter used for?

2What is the difference between a rigid bag and a standard pocket filter?

3Are other efficiency grades available?

4What is the difference between an F7 rigid bag filter and an F7 pocket filter?

5What does F7 mean on a rigid bag filter?

6Can the F7 Rigid Bag Filter replace an existing OEM filter?

7Can I provide an existing part number to find an F7 rigid bag filter replacement?

8Is an F7 rigid bag filter suitable for air handling units?

9Can F7 rigid bag filters be supplied in custom sizes?

10What environmental conditions are suitable for F7 Rigid Bag Filter?

11Why is Airguard Envirocare's F7 Rigid Bag Filter an alternative to Altair?

12Can you provide technical information for F7 Rigid Bag Filter?

13What is the origin of F7 Rigid Bag Filter?

14What is the lead time for F7 Rigid Bag Filter?

15Will using F7 Rigid Bag Filter void our gas turbine warranty?

16Does F7 Rigid Bag Filter have a manufacturer warranty?

Customer Reviews

Low pressure drop, high dust holding

Exactly to spec, fast turnaround

Cut our change-out frequency

Effective and well made

Solid quality

Reliable performance

Consistent between batches

Would order again

Top quality and great support

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