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Ducted vs Ductless Range Hood

Ducted vs Ductless Range Hood: Which Ventilation Type Is Right for Your Kitchen?

Choosing between a ducted and ductless range hood comes down to your kitchen layout, cooking habits, and whether exterior venting is an option. The two types handle smoke, grease, and odor differently — and that difference affects performance, installation cost, and long-term maintenance.

This guide breaks down how each type works, where each one fits best, and how to decide which makes sense for your kitchen.

Looking to buy? Browse our full selection of ductless range hoods or explore all range hood options to find the right fit for your kitchen layout.

Key Takeaways: Ducted vs Ductless Range Hood

  • Ducted range hoods vent air outside through ductwork, making them more effective at removing smoke, grease, heat, and moisture from your kitchen
  • Ductless range hoods filter air through charcoal and grease filters and recirculate it back into the room — no exterior venting required
  • Ducted hoods are the better choice for heavy cooking, gas ranges, and kitchens where exterior venting is accessible
  • Ductless hoods work well in condos, apartments, rentals, and kitchens where running ductwork is not practical or not permitted
  • Convertible range hoods offer both options, letting you install as ducted or ductless depending on your setup

What Is a Ducted Range Hood?

A ducted range hood — also called a vented or externally vented range hood — connects to ductwork that runs through your wall, ceiling, or roof. When you cook, the hood pulls in smoke, steam, grease particles, and odors, then pushes that air through the duct and completely out of your home.

Because the contaminated air is fully removed rather than filtered and recirculated, ducted hoods deliver stronger ventilation performance. They are the standard in professional kitchens and the preferred choice for serious home cooks, especially those using gas ranges with high BTU output.

Ducted hoods are also generally quieter than ductless models at comparable CFM ratings because the blower motor is pushing air through a duct path rather than forcing it back through filters.

What Is a Ductless Range Hood?

A ductless range hood — also called a recirculating range hood or ventless range hood — does not connect to any external ductwork. Instead, it pulls air through a grease filter and a charcoal (activated carbon) filter, then recirculates the cleaned air back into your kitchen.

Ductless hoods are significantly easier to install since there is no ductwork to run. They can be mounted under a cabinet, on a wall, or above an island without worrying about proximity to an exterior wall or roof access.

The tradeoff is performance. Because the air is filtered and returned to the room rather than exhausted outside, ductless hoods do not remove heat or moisture from the kitchen. Smoke and odor removal depends entirely on filter condition — charcoal filters need to be replaced every three to six months depending on cooking frequency.

Ducted vs Ductless Range Hood: Side-by-Side Comparison

Feature Ducted Range Hood Ductless Range Hood
How It Works Vents air outside through ductwork Filters air and recirculates into kitchen
Smoke Removal Excellent — fully exhausts smoke outdoors Moderate — filters smoke, returns air to room
Grease Removal Excellent — grease exits with exhaust air Good — grease filter captures particles
Heat & Moisture Removal Yes — expelled with exhaust No — heat and moisture stay in the kitchen
Odor Removal Excellent — odors vented outside Moderate — charcoal filter absorbs some odor
Noise Level Generally quieter at same CFM Generally louder due to filter resistance
Installation Requires ductwork — professional install typical No ductwork needed — simpler DIY install
Installation Cost $200–$500+ for ductwork (on top of hood price) Minimal — mounting hardware only
Maintenance Clean grease filters periodically Replace charcoal filters every 3–6 months
Ongoing Cost Lower — no filter replacements Higher — charcoal filters $20–$50 per set
Placement Flexibility Limited by duct access to exterior wall or roof Can be installed nearly anywhere
Best For Gas ranges, heavy cooking, permanent kitchens Condos, apartments, rentals, island layouts without duct access

How Do Ductless Range Hoods Work?

Ductless range hoods use a two-stage filtration process. The first stage is a grease filter — typically stainless steel mesh or aluminum baffles — that captures grease particles before they reach the fan and motor. The second stage is a charcoal or activated carbon filter that absorbs odors and finer particles.

After passing through both filters, the air is blown back out into the kitchen through vents in the hood. The air is cleaner than when it entered, but it has not been removed from the room. That means heat and humidity from cooking stay in your kitchen.

Ductless hoods are effective for light to moderate cooking. If you are primarily sautéing vegetables, heating up meals, or doing everyday stovetop cooking, a ductless hood handles the job. But for heavy searing, deep frying, or high-heat wok cooking — especially on a gas range — the filtration system cannot keep up the way a ducted exhaust can.

When to Choose a Ducted Range Hood

A ducted range hood is the better option when:

  • You cook with gas. Gas ranges produce combustion byproducts including carbon monoxide, nitrogen dioxide, and water vapor. These need to be vented outside, not filtered and returned to the room.
  • You do heavy cooking. Frequent frying, searing, grilling, or wok cooking generates high volumes of smoke and grease that overwhelm charcoal filters.
  • Your kitchen has exterior wall or roof access. If ductwork can reach the outside within a reasonable distance, ducted is almost always the stronger choice.
  • You want the quietest operation. Ducted hoods at 400–600 CFM are typically 3–6 sones. Comparable ductless hoods run louder because the fan has to push air through denser filter media.
  • You want lower long-term cost. No recurring charcoal filter replacements. Grease filters are washable and reusable.

When to Choose a Ductless Range Hood

A ductless range hood is the right move when:

  • Exterior venting is not possible. Condos, apartments, and some townhomes restrict wall or roof penetrations. A ductless hood gives you ventilation without structural modification.
  • You are remodeling and want to avoid rerouting ductwork. Moving a range to an island or a wall without existing duct access gets expensive fast. Ductless eliminates that cost.
  • You are in a rental. Ductless hoods can be installed and removed without permanent changes to the structure.
  • Your cooktop is on an island without ceiling duct access. Ductless island range hoods recirculate without needing a duct chase through the ceiling.
  • Your cooking is light to moderate. If you primarily use an electric cooktop for everyday meals, a ductless hood provides adequate filtration.

What About Convertible Range Hoods?

Convertible range hoods — sometimes listed as ducted/ductless or convertible venting — are designed to work either way. They ship with the hardware for ducted installation and include a recirculating kit with charcoal filters for ductless use.

This is a practical choice if you are unsure about your long-term kitchen layout or if you plan to add ductwork later. You can install it as ductless now and convert to ducted during a future renovation without replacing the hood.

Most under-cabinet and wall-mount range hoods from major manufacturers offer a convertible option. Check the product specs for "convertible venting" or "recirculating kit included" before purchasing.

CFM Considerations: Ducted vs Ductless

CFM — cubic feet per minute — measures how much air a range hood can move. The CFM you need depends on your cooking surface, not just the hood type.

General CFM guidelines:

  • Electric cooktop: 100 CFM per 10 inches of cooktop width (a 30-inch electric cooktop needs at least 300 CFM)
  • Gas range: 1 CFM per 100 BTU of burner output (a 60,000 BTU gas range needs at least 600 CFM)
  • Island installations: Add 150 CFM to the above — open-air capture requires more airflow

Ductless hoods do not need as high a CFM rating as ducted hoods because they are not pushing air through long duct runs. However, lower CFM means less capture — so sizing correctly still matters. For a deeper breakdown, see our guide on what CFM range hood you need.

Installation: What to Expect

Ducted installation typically involves mounting the hood, cutting through the wall or ceiling for a duct opening, running rigid or semi-rigid ductwork to the exterior, and installing an exterior wall cap or roof cap. Most homeowners hire a professional for this work. Total installation cost (labor plus materials, not including the hood itself) runs $200–$500 for a straightforward wall run, and $500–$1,000+ if ductwork needs to be routed through a ceiling, attic, or multiple turns.

For a step-by-step breakdown, see our guide on how to install a range hood.

Ductless installation is significantly simpler. Mount the hood to the wall or underside of a cabinet, plug it in or wire it to a dedicated circuit, and install the charcoal filters. Most ductless installs are doable as a DIY project in under an hour.

How to Maintain Each Type

Ducted range hoods: Clean the grease filters every one to three months depending on cooking frequency. Most stainless steel baffle filters and aluminum mesh filters are dishwasher-safe. The ductwork itself rarely needs attention, though a professional cleaning every few years is recommended for heavy-use kitchens.

Ductless range hoods: Clean the grease filters on the same schedule as ducted models. Additionally, replace the charcoal filters every three to six months. Charcoal filters cannot be washed — they must be replaced. Expect to spend $20–$50 per replacement set depending on the brand and model.

Ducted vs Ductless Range Hood: Which Should You Buy?

If you have the ability to run ductwork to the exterior, go ducted. The ventilation performance, noise reduction, and lower long-term maintenance make it the stronger investment for any kitchen where exterior venting is accessible.

If ductwork is not possible — whether due to building restrictions, kitchen layout, or budget — a quality ductless range hood still provides meaningful filtration and is far better than cooking without ventilation.

Browse our full selection of ductless range hoods or explore all range hood options to find the right fit for your kitchen layout.

FAQ: Ducted vs Ductless 

What is the difference between a ducted and ductless range hood?

A ducted range hood vents air outside through ductwork. A ductless range hood filters air through charcoal and grease filters and recirculates it back into the kitchen. Ducted hoods remove smoke, grease, heat, and moisture more effectively, while ductless hoods offer greater placement flexibility.

Do ductless range hoods actually work?

Yes. Ductless range hoods effectively reduce grease and cooking odors for light to moderate cooking loads. They will not remove heat or moisture from the kitchen and are less effective for heavy cooking compared to ducted models, but they are significantly better than having no ventilation at all.

How do ductless range hoods work?

Ductless range hoods pull air through a grease filter to capture particles, then through a charcoal filter to absorb odors. The filtered air is recirculated back into the kitchen. Because nothing is vented outside, heat and steam remain in the room.

Can you replace a ducted range hood with a ductless one?

Yes. Many range hoods are convertible and can switch between ducted and ductless operation with a recirculating kit. If you remove a ducted hood entirely, you will need to cap the duct opening in your wall or ceiling.

Are ductless range hoods effective over a gas range?

Ductless hoods can be used over a gas range, but ducted ventilation is strongly preferred. Gas burners produce combustion byproducts including carbon monoxide and nitrogen dioxide that should ideally be vented outside, not recirculated through filters.

What does convertible range hood mean?

A convertible range hood can be installed as either ducted or ductless. It includes the mounting hardware for ductwork connections and a charcoal filter kit for recirculating operation, giving you the flexibility to choose based on your kitchen setup.

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