In modern kitchens, maintaining clean and fresh air is a priority, especially with frequent cooking. One effective solution is a recirculating extractor hood, a type of range hood that filters and recirculates air instead of venting it outside. In this guide, we will explore how recirculating extractor hoods work, their benefits, and factors to consider when choosing one for your kitchen.
What is a Recirculated Extraction?
A recirculating extractor hood, also known as a ductless range hood, is designed to purify cooking air and release it back into the kitchen. Unlike ducted hoods that expel air outdoors, recirculating models use a system of filters to remove grease, odors, and smoke before redistributing the cleaned air.
Difference Between Recirculation and Extractor Cooker Hoods
1. Ventilation Method
Recirculation Hood: Filters and recirculates air back into the kitchen.
Extractor Hood: Vents air outside through ductwork.
2. Installation & Cost
Recirculation: Easier to install, no ductwork needed, lower upfront cost.
Extractor: Requires duct installation, higher initial cost.
3. Efficiency
Recirculation: Less effective at removing moisture and heat.
Extractor: More efficient in eliminating smoke, grease, and odors.
4. Maintenance
Recirculation: Requires regular carbon filter replacements.
Extractor: Needs occasional duct cleaning but no filter replacements.
Related: Ducted vs Ductless Range Hood
Do Recirculating Extractors Work?
Yes, recirculating extractor hoods do work, but their effectiveness depends on usage and maintenance.
How They Work:
Recirculating extractors use grease filters (usually aluminum or stainless steel) to trap grease and activated carbon filters to absorb odors and smoke. The filtered air is then released back into the kitchen.
Effectiveness:
- Good for Light Cooking: Suitable for kitchens where heavy frying or grilling is not frequent.
- Less Effective for Heat & Moisture: Unlike ducted hoods, they do not remove steam or excess heat.
- Regular Maintenance Needed: Carbon filters require replacement every 3-6 months to maintain efficiency.
Are Recirculating Hoods Worth It?
Yes, but it depends on your needs. Recirculating hoods are worth it if:
- You can’t install ductwork (e.g., apartments, rented homes).
- You need an easy-to-install and cost-effective option.
- You do light cooking (not heavy frying or grilling).
Can You Use a Recirculating Kit in a Chimney Extractor?
Yes, you can use a recirculating kit in a chimney extractor, and Ciarra's range hoods support this option.
How It Works:
A recirculating kit typically includes carbon filters that absorb odors and smoke. Instead of venting air outside, the hood filters and recirculates the cleaned air back into the kitchen.
Ciarra's Chimney Extractor Hoods & Recirculation:
Ciarra's wall-mounted and island cooker hoods are designed for both ducted and recirculating installation. You can install a carbon filter kit to convert them into a recirculating system.
When to Use Recirculation Mode:
- If you don’t have external ducting available.
- If you want an easier installation without modifying walls.
- If you’re looking for flexibility, since Ciarra hoods allow switching between ducted and recirculating modes.
What Filter for a Cooker Extractor for Recirculation?
For a cooker extractor used in recirculation mode, the key filter you need is an activated carbon filter.
Filters for Recirculation:
Activated Carbon Filter
Purpose: Absorbs odors, smoke, and cooking fumes.
How It Works: The carbon material traps particles and volatile organic compounds (VOCs), cleaning the air before it's recirculated back into the kitchen.
Maintenance: These filters need to be replaced every 3 to 6 months, depending on use, to maintain optimal performance.
Grease Filter
Purpose: Traps grease and cooking oil particles.
How It Works: Typically made from aluminum or stainless steel, these filters capture grease before air passes through the carbon filter.
Maintenance: Grease filters should be cleaned regularly (usually every 1-2 weeks) to maintain airflow and efficiency.
How to Clean Cooker Hood Filters
FAQs
Do Recirculating Cooker Hoods Remove Steam?
No, recirculating hoods do not effectively remove steam. They mainly filter out odors and grease, but moisture is not expelled.
How Long Do Carbon Filters Last in the Cooker Hood?
Carbon filters typically last 3 to 6 months, depending on usage. They should be replaced regularly for optimal performance.
How Do You Clean a Recirculating Cooker Hood?
- Grease Filter: Clean with warm soapy water or in a dishwasher (if applicable).
- Carbon Filter: Carbon filters cannot be cleaned; they need to be replaced.
- Exterior: Wipe with a damp cloth and mild detergent to maintain cleanliness.