You are here

GC™ MultiGas Support

Status message

If you are seeing this notice please refresh your page

Product SetupProduct Setup



Tech SpecsTech Specs

Replacement FiltersReplacement Filters

Replacement PartsReplacement Parts


Contact UsContact Us

Product Setup

GC MultiGas

A quick guide to setting up your new GC™ MultiGas air purifier

 Getting Started Guide

Download the Getting Started Guide for the GC™ MultiGas Air Purifier for instructions on setting up your air purifier and maintaining your IQAir system.

Product Warranty Registration

Register your air purification product by completing the quick and easy Online Registration Form.


Our simple promise.

At IQAir, we are committed to providing you with the best air purifiers in the world. And we back it up 100% with this simple, straightforward warranty. We ensure that your IQAir® GC Series system meets or exceeds our quality guarantee. We also guarantee that your system is free from defects, or we will fix or replace it for free. This includes everything.

This is our simple promise. We stand 100% behind the quality of our Swiss-made air purifiers. So you can relax and breathe easy.

Click here for the details.

Click here to register your GC Series system.



Congratulations on your purchase of an IQAir GC™ MultiGas Air Purifier. Use the links below to download your User Manual and familiarize yourself with the special features and functions of your IQAir system.

GC MultiGas

   GC™ Series User Manual 6.4 MB  Download
   GC™ Series Cartridge Instructions 1.1 MB  Download
   Material Safety Data Sheet 97 KB  Download


Technical Specifications

  GC™ MultiGas
General Specifications
Power requirements 100-120 V, 50/60 Hz
Energy consumption, 6 fan speeds* 27, 53, 92, 121, 154, 215 Watt; Standby: <1 Watt
Dimensions H 28" x W 15" x D 16" (H 71 x W 38 x D 41 cm)
Weight, system incl. filters 44 lbs. (20 kg)
Air delivery, incl. filters, 6 fan speeds* 40, 75, 130, 170, 200, 300 cfm (70, 130, 220, 290, 340, 510 m³/h)
Sound pressure/power level, 6 fan speeds** LP 25, 36, 44, 50, 54, 59 dB(A); LW 35, 46, 54, 60, 64, 69 dB(A)
Fan motor centrifugal, backward curved, with thermal protector, non-stop use approved
Control panel 4-key touch-pad with 16 character 2-line LCD display
Air intake dual arches at base of system
Air outlet 320° EvenFlow diffuser
Color of main housing / locking arms light gray / blue
Housing material non-offgasing, impact-resistant, UV-stabilized ABS
Operating temperature / humidity 41° to 104° F (5° to 40°C) / 5% to 95% non-condensing
Electrical safety certification CSA rated for continuous operation under applicable UL and CSA standards, BSMI
Total system efficiency (certified) ≥ 99% for particles ≥ 0.3 microns (individually tested), ≥ 95% at ≥ 0.003 microns
Air delivery (certified) yes (individually tested with all filters fitted)
Leak tested yes
Filter Configuration
Pre-filter GC™ HyperHEPA® Pre-Filter H11 (S)
Purpose: control of coarse, fine & ultra-fine dust particles; protection of subsequent filters
Media: non-woven glass microfiber HyperHEPA® filter, non-offgasing separators
Efficiency: ≥ 99% at ≥ 0.3 microns (EN 1822 HyperHEPA® class H11)
Surface area: 32 sq. ft. (3.0 m²)***
Average filter life: approx. 12 months (based on average daily usage of 10h on speed 3)****
Gas & odor filter GC™ MultiGas Cartridges
Purpose: control of a wide range or specific chemical substances and odors
Media: 12 lbs. (5.4 kg) granular activated carbon & impregnated alumina (AC/4 + IA/4)
Average filter life: approx. 2 ½ years (based on average daily usage of 10h on speed 3)****
Post-filter GC™ Post-Filter Sleeve Set
Purpose: control of fine & ultra-fine particulate matter
Media type: electrostatically charged fiber
Surface area: 5.4 sq.ft. (0.5 m²)***
Average filter life: approx. 2 ½ years (based on average daily usage of 10h on speed 3)****
Display languages 4 user-selectable languages: English, French, German, Spanish
Intelligent filter life monitor yes (monitors actual usage of each individual filter), 3 filter life status LEDs
Advanced timer yes (allows programming of operating hours and weekdays)
Advanced fan speed selection yes (allows programming of different fan speeds for 2 different time periods)
Supplied accessories remote control (incl. battery), power cord with plug, deluxe casters, certificate of performance
Optional accessories FlexVac™ & VM FlexVac™ mobile & wall-mounted source capture kits, InFlow™ & OutFlow™ positive/negative pressure duct kits, PF40™ coarse dust pre-filter, VMF wall-mount bracket.
* per fan speed measured at 120V, 60Hz; tolerance: ± 10% (± 6 cfm); ** tolerance: ± 3 dB(A); *** tolerance: ± 10% **** filter life can vary based on actual usage and pollution levels.
All technical specifications are subject to change without prior notice.

Replacement Filters

GC MG Cartridges

(F2 on your control panel)

Destroys harmful chemicals, such as formaldehyde, by an oxidation process inside a chemically active alumina pellet.

Post-filter Sleeves

(F3 on your control panel)

Eliminates activated carbon and chemisorption abrasion particles through a charged fiber structure.

HyperHEPA® Pre-Filter H11

(F1 on your control panel)

This powerful HEPA pre-filter eliminates micro- and nano-particles such as allergens, smoke, bacteria and viruses.

Control Panel
Filter Life Monitor

GC MG Cartridges

(set of 4)

GC MG Cartridges

Filter Replacement Inst.


Post-filter Sleeves

(set of 4)

Post-filter Sleeves

Filter Replacement Inst.


Pre-Filter H11


HyperHEPA Pre-Filter H11

Filter Replacement Inst.


Replacement Parts

Mobility Pro Casters, Deluxe

2 mounting rails, 4 casters w/ rubber wheels
(2 with brakes)

Deluxe Casters


Remote Control

6 speeds, battery included
(for all Residential Room Systems)

Remote Control


Power Cord

2.5 meter, 2-prong, grey
(for all Residential Room Systems)

Power Cord


Frequently Asked Questions

Explanation of Filter Life LEDs (lights on the control panel)

Whenever the system is on, the color of the filter life LEDs (light emitting diodes) indicate the state of the individual filters in the system. The positions of the filter life LEDs on the control panel correspond to the actual positions of the filters within the system.

The filter life LEDs signal four possible stages in the life of the filter:


    Green: The filter is still within 80% of its estimated life span.


    Orange: The filter is approaching the last 20% of its estimated life span.


    Red: The filter has reached the end of its estimated life span.

  4. Red blinking: The filter has passed its estimated life span and should be replaced immediately.

    The IQAir system’s effectiveness is likely to have been reduced dramatically, either due to a reduction in airflow (particle filters are clogged) or a reduction in filter efficiency (gas phase filter is saturated).

The fan speed LEDs simulate the fan speed through the frequency of their rotation. The faster the rotation of the fan speed LEDs, the faster the actual fan speed of the system.


What does the red light mean on my control panel? (Resetting filter life)

When a red light (LED) appears on the control panel, it’s time to replace your filter. It indicates that the filter has passed its estimated life span. In order to properly track the life of your filters, it's important to reset the Filter Life Monitor with each filter replacement. After reset, the red LED will be change to green.

Please refer to the GC Series User Manual instructions, chapter 4.4.8, Filter Life Reset (New Filter) Download Here


Ordering replacement casters (wheels)

To order replacement casters, please contact our Technical Support Team. Please provide your name, shipping address, phone number, IQAir model, serial number (if available), and reason replacements are needed. Your feedback will help to improve our products in the future.

For more information, please refer to the instructions: Fitting and Removing Casters.


Instructions for replacing filters and cartridges

For GC Series Systems, please refer to the GC Series User Manual, chapter 6, Replacing Filters. Download Here

For GC™ Systems, please refer to the GC™ User Manual, chapter 6, Replacing Filters. Download Here


Instructions for installing the PF40™ Kit

Quick to install, the PF40™ Kit consists of an upper grille which is fitted into the IQAir system’s base. Use the 8 screws to secure it to the bottom of the base. A synthetic coarse dust filter pad is held in place by a lower grille that is secured by four clips. The filter pad has a rough, cottony side and a smooth side. Place the filter on top of the filter grille with the rough, cottony side facing outward. When properly installed the rough, cottony side will be facing the floor when the system is in its upright position.

Click on the link below for instructions how to install the PF40™ Kit. Instructions are also included inside the box which of each PF40™ kit.

PF40 Installation Instructions


When do I replace the filter pad in my PF40™?

The PF40 filter pads should be visibly checked for cleaning and replacement. There is no LED indicator light for the PF40™ on your room air cleaner. Initially, it is recommended to check the pads once every two to four weeks to check for loading. After loading has been determined, this frequency may be reduced accordingly.

How often should I run my system and at what speed?

Depending on the level of air cleaning desired, the IQAir system can be operated as frequently as needed. For general air cleaning purposes, the system should filter the room air volume at least twice every hour on the set fan speed in order to achieve a significant air quality improvement. If the intensity of the pollution source is high or a high degree of purification is needed, more air changes may become necessary. More air changes may be achieved by selecting a higher fan speed and/or by running the room air cleaner more frequently. In order to achieve the desired number of air changes, more than one room air cleaner may be required, or an IQAir whole-house filtration system should be considered.

It is the customer's discretion how often to actually operate their IQAir system. All IQAir room air cleaners can be run 24 hours a day, if needed, without harm to the system.

Generally, when running the system at speed 6 it will take about 15 minutes to clear 50% of the particles in a 900 square-foot room. A smaller room at the same fan speed would achieve results more quickly. Keep in mind that fan speed and room measurements can affect the length of time to achieve results.

For more information, please refer to the GC® Series User Manual, chapter 4.3, Fan Speed & Air Delivery.
Use this calculator to determine the recommended minimum fan speed for your system.

Calculate Fan Speed


Contact IQAir Technical Support Team

Our website is available 24 hours per day and has answers to your most frequently asked questions. Technical Support is available from 8 a.m. to 4:30 p.m. (PST), Monday-Friday. Please call 1-888-560-1020, or contact us at

To expedite your service request, please have the following information ready when contacting us:

  1. IQAir model, and serial number (found on the base of the system)
  2. Your details (name, address, phone, e-mail)
  3. Point of Purchase (name of IQAir Dealer)
  4. Date of purchase
  5. Description of issue

Please refer to the Technical Support and Warranty Registration Card supplied with your air cleaner literature for more details.

Contact Us

Please complete the form below and a service expert will contact you shortly to help with your IQAir product needs.

* Required Fields

Individual    Company
Please enter your first name.
Please enter your last name.
Please enter your email address in the following format:
Please enter your phone number in the following format: xxx-xxx-xxxx
Please select your product from the list above.
Please enter a message.

All information is treated confidentially and will not be supplied to third parties.