Introduction
This manual provides essential information for the installation, operation, and maintenance of your Iridesc HEPA Filter Kit. This kit is designed to replace filters in various air exchanger models, ensuring high-quality air filtration in your home or office environment. Please read these instructions carefully before proceeding with installation or maintenance.

Image: The Iridesc HEPA Filter Kit, featuring one HEPA filter and two pre-filters, ready for installation.
Product Compatibility
The Iridesc HEPA Filter Kit (ACCGSFHP2) is compatible with the following air exchanger models:
- Nutone/Broan Air Exchanger Filters: ACCGSFHP2
- Guardian Plus Filters: GSFH1K, HF 1.0, HF 2.0, HF 3.0, HF 3.1, HR 2.5, HR 2.6
- Venmar Filters: HEPA 1000, HEPA 2000, HRV 2500, HRV 2600, HEPA 3000, HEPA 3100

Image: A visual representation of the Iridesc HEPA Filter Kit's compatibility with various Guardian Plus and Venmar air filter models, highlighting the part number ACCGSFHP2.
Setup and Installation
The Iridesc HEPA Filter Kit is designed for straightforward installation, requiring minimal tools. Follow these steps to replace your old filters:
- Locate the Filter Compartment: Identify the filter access panel on your air exchanger unit. Refer to your air exchanger's manual if unsure.
- Remove Old Filters: Open the compartment and carefully remove the existing HEPA filter and pre-filters. Dispose of them according to local regulations.
- Install New Pre-Filters: Place the two new pre-filters (14 3/4" x 18 3/4" x 1/16") into their designated slots. Ensure they are seated correctly.
- Install New HEPA Filter: Insert the new HEPA filter (15 7/8" W x 19 7/8" H x 2" D) into its slot. The filter should fit snugly.
- Secure Compartment: Close and secure the filter compartment.
The process typically involves a simple pinch, grip, twist, and remove method for the old filters, making the change quick and hassle-free.

Image: A visual guide demonstrating the ease of installation, including a diagram of an air exchanger unit and images of the filter being inserted into the unit.
Operating Principles
The Iridesc HEPA Filter Kit works in conjunction with your air exchanger to purify indoor air. The kit includes:
- Two Pre-Filters: These filters capture larger airborne particles such as dust, pet dander, and construction debris, protecting the HEPA filter and extending its lifespan.
- One High-Performance HEPA Filter: This filter is designed to capture 99.97% of airborne particles as small as 0.3 microns, including bacteria, allergens, smoke, and fine dust, significantly improving indoor air quality.
The combined action of the pre-filters and the HEPA filter ensures comprehensive removal of irritants and airborne particles, contributing to a healthier breathing environment.

Image: An infographic illustrating the effectiveness of the filter kit in removing various airborne irritants, including construction debris, bacteria, allergens, pet dander, smoke, dust, paint odor, and general unpleasant smells, with a stated efficiency of 99.3% removal.
Maintenance and Replacement
To ensure optimal performance and maintain air quality, regular replacement of your Iridesc HEPA Filter Kit components is essential:
- Pre-Filters: It is recommended to change the pre-filters every 2 to 3 months.
- HEPA Filter: The main HEPA filter should be replaced every 4 to 6 months.
Replacement frequency may vary based on usage and environmental conditions. For example, in environments with higher levels of dust, pet dander, or pollutants, more frequent replacement (1-2 times per month for pre-filters) may be necessary.
Troubleshooting
If you experience issues with your air exchanger's filtration after installing the Iridesc HEPA Filter Kit, consider the following:
- Reduced Airflow: Check if the filters are installed correctly and not obstructed. Ensure the air exchanger unit itself is functioning properly.
- Persistent Odors/Particles: Verify that the filters are seated tightly and there are no gaps allowing unfiltered air to bypass. Consider if the filters need more frequent replacement due to environmental factors.
- Unusual Noises: Ensure the filters are not vibrating or loose within their compartments.
For issues unrelated to filter installation, consult your air exchanger's specific troubleshooting guide or contact a qualified technician.
Specifications
Brand Name | Iridesc |
Model Number | ACCGSFHP2 |
Item Weight | 2.49 pounds |
Product Dimensions (HEPA Filter) | 15 7/8" W x 19 7/8" H x 2" D (approximately) |
Product Dimensions (Pre-Filters) | 14 3/4" x 18 3/4" x 1/16" (approximately) |
Material Type | Plastic (frame) |
Included Components | One high-performance HEPA filter, two pre-filters |
Reusability | Disposable |

Image: Detailed view of the HEPA filter and pre-filters, with their approximate dimensions clearly indicated.
Warranty and Support
Iridesc stands behind the quality of its replacement parts. For any inquiries, assistance, or support regarding your ACCGSFHP2 filter kit, please contact Iridesc customer service. We are committed to ensuring your satisfaction.

Image: A customer service representative ready to assist with product inquiries.
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