Question 1

What is a G4 Panel Filter used for?

Accepted Answer

A G4 panel filter is generally used as a coarse pre-filter in HVAC, ventilation and air handling systems. It helps capture larger airborne particles before the air reaches downstream medium- or high-efficiency filters.

Question 2

Can the G4 Panel Filter be used as a pre-filter?

Accepted Answer

Yes. It can be used as a primary filtration stage to help protect downstream filters and equipment from excessive particulate loading.

Question 3

Do you supply bespoke G4 Panel Filters?

Accepted Answer

Yes. Airguard Envirocare can supply standard and non-standard dimensions based on your existing filter housing and application requirements.

Question 4

What does G4 mean on an air filter?

Accepted Answer

G4 is a coarse filter classification associated with the former EN779 standard. For modern filter selection, the applicable ISO 16890 classification and technical performance data should be checked, as ISO 16890 uses a different testing and classification method.

Question 5

Where can a G4 Panel Filter be used?

Accepted Answer

A G4 Panel Filter can be used in:

HVAC systems
Air handling units
General ventilation
Commercial buildings
Industrial facilities
Pre-filtration systems

It is often used upstream of finer filters such as F6, F7, F8 or F9 filters, depending on the filtration system design.

Question 6

Can a G4 Panel Filter replace an existing OEM pre-filter?

Accepted Answer

Yes. The G4 Panel Filter can be supplied as an OEM-equivalent or replacement-by-specification filter. Provide the existing OEM part number, dimensions, frame depth and airflow for accurate matching.

Question 7

Why use a G4 panel filter before an F7 or F8 filter?

Accepted Answer

A G4 filter can act as the first stage of filtration, helping capture larger airborne particulates before it reaches finer downstream filters. This can reduce contaminant loading on higher-efficiency filters and support an effective multi-stage filtration system.

Question 8

Can G4 Panel Filters be manufactured in custom sizes?

Accepted Answer

Yes. Airguard Envirocare can assess custom or specification-matched G4 panel filters based on the required dimensions, frame construction, airflow and application requirements.

Question 9

What environmental conditions are suitable for G4 Panel Filter?

Accepted Answer

G4 Panel 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 10

Why is Airguard Envirocare's G4 Panel Filter an alternative to Altair?

Accepted Answer

Where G4 Panel 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 11

Can you provide technical information for G4 Panel Filter?

Accepted Answer

Yes. Airguard Envirocare can provide available technical information for G4 Panel Filter, including technical datasheets, technical drawings and other relevant information on request.

Question 12

What is the origin of G4 Panel Filter?

Accepted Answer

The stated manufacturing origin is the United Kingdom.

Question 13

What is the lead time for G4 Panel Filter?

Accepted Answer

Depending on the product, order requirements and delivery location, G4 Panel Filter can be delivered in approximately 2 to 7 working weeks.

Question 14

Will using G4 Panel 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 15

Does G4 Panel Filter have a manufacturer warranty?

Accepted Answer

Yes. Airguard Envirocare offers a 12-month manufacturer warranty for G4 Panel 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	HVAC Panel 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)	Rated Capacity (m³/hr)	Initial Resistance (Pa)	Final Resistance (Pa)
500 x 400	495 x 395	1400	65	250
500 x 500	495 x 495	1780	65	250
600 x 300	595 x 287	1230	65	250
500 x 500	595 x 495	2130	65	250
600 x 600	595 x 595	2560	65	250
530 x 400	520 x 395	1760	65	250
635 x 500	620 x 495	2200	65	250

Nominal Size (mm)	Actual Size (mm)	Rated Capacity (m³/hr)	Initial Resistance (Pa)	Final Resistance (Pa)
300 x 300	287 x 287	790	70	250
380 x 380	375 x 375	1300	70	250
450 x 450	445 x 445	1895	70	250
500 x 380	495 x 369	1750	70	250
500 x 400	495 x 395	1870	70	250
500 x 500	495 x 495	2360	70	250
600 x 300	595 x 287	1700	70	250
600 x 400	595 x 395	2250	70	250
600 x 450	595 x 445	2540	70	250
500 x 500	595 x 495	2830	70	250
600 x 600	595 x 595	3400	70	250
635 x 400	620 x 395	2350	70	250
535 x 500	520 x 495	2950	70	250

Nominal Size (mm)	Actual Size (mm)	Rated Capacity (m³/hr)	Initial Resistance (Pa)	Final Resistance (Pa)
450 x 450	445 x 445	2380	80	250
500 x 400	495 x 395	2380	80	250
500 x 500	495 x 495	2950	80	250
600 x 300	596 x 287	2125	80	250
500 x 500	495 x 495	3540	80	250
600 x 600	595 x 595	4250	80	250
535 x 400	520 x 395	2940	80	250
635 x 500	620 x 495	3700	80	250

G4 Panel Filter

Product Overview

Construction

Technical Specifications

Size Table 25 mm Nominal (22 mm Actual):

Size Table 50 mm Nominal (47 mm Actual):

Size Table 100 mm Nominal (96 mm Actual):

Applications

Industrial Sector

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How It Works

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Expert Consultation

Fast Quotation

Precision Manufacturing

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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 a G4 Panel Filter used for?

2Can the G4 Panel Filter be used as a pre-filter?

3Do you supply bespoke G4 Panel Filters?

4What does G4 mean on an air filter?

5Where can a G4 Panel Filter be used?

6Can a G4 Panel Filter replace an existing OEM pre-filter?

7Why use a G4 panel filter before an F7 or F8 filter?

8Can G4 Panel Filters be manufactured in custom sizes?

9What environmental conditions are suitable for G4 Panel Filter?

10Why is Airguard Envirocare's G4 Panel Filter an alternative to Altair?

11Can you provide technical information for G4 Panel Filter?

12What is the origin of G4 Panel Filter?

13What is the lead time for G4 Panel Filter?

14Will using G4 Panel Filter void our gas turbine warranty?

15Does G4 Panel Filter have a manufacturer warranty?

Customer Reviews

Exactly to spec, fast turnaround

Consistent between batches

Would order again

Low pressure drop, high dust holding

Reliable performance

Cut our change-out frequency

Effective and well made

Solid quality

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