How to Choose the Right Kitchen Extractor

Of every decision in a kitchen renovation, the extractor is the one most often chosen last and regretted first. It rarely gets the attention given to cabinetry, worktops or lighting, and yet it is the single appliance most responsible for whether an open-plan home smells of last night’s cooking well into the following afternoon. In Singapore, where wok cooking and strong aromatics are a daily reality for many households, and where the kitchen frequently opens directly onto the living and dining space, getting the extractor right matters more than almost anywhere else in the world.

The good news is that the decision, while technical, comes down to a small number of genuinely important factors — extraction power, ducting, and noise — rather than the vast range of finishes and styles the market presents it through.

Extraction Power for Real Cooking

Extraction power is measured in cubic metres of air moved per hour, and it is the specification most worth understanding before anything else. A household that cooks primarily Western-style meals on a standard hob can manage comfortably with a moderate-powered extractor. A household doing regular wok cooking, with high heat and significant oil aerosol, needs meaningfully more power — often close to double — to keep pace with what is actually being produced at the hob. Underspeccing here is the single most common mistake in kitchen renovations, and one of the most expensive to fix after the fact, since it usually means replacing ducting as well as the unit itself.

A Rough Guide to Power Needs

• Light, occasional cooking: a standard-power integrated or slimline hood is generally sufficient.
• Regular home cooking, moderate heat: a mid-power chimney or island hood with a boost setting.
• Frequent wok cooking, high heat, strong aromatics: a high-power commercial-style or dedicated wok extractor.

Ducted Versus Recirculating

A genuinely ducted extractor, venting cooking air and odours outside the home, is unambiguously the better performer and the right choice wherever the building layout allows it. A recirculating extractor, which filters and returns air to the room, is a compromise reserved for kitchens where ducting to an exterior wall is structurally impossible — common in some apartment layouts, particularly where the kitchen sits deep within the floor plan. Recirculating systems require regular filter changes to remain effective and will never match a properly ducted system for wok cooking specifically, since charcoal filters struggle with the volume of oil aerosol strong frying produces.

For anyone planning a kitchen from scratch, it is worth treating ducting as a structural decision made early, alongside layout and plumbing, rather than a detail resolved once cabinetry has already been chosen — retrofitting ducting into a finished kitchen is disruptive and, in some layouts, simply not possible.

Noise Is a Design Decision, Not Just a Spec Sheet Number

A powerful extractor that is unbearably loud on its highest setting will, in practice, rarely be run on that setting, which defeats the entire purpose of specifying it in the first place. Noise level, measured in decibels, deserves as much attention as extraction power, and the two are not always in tension — some of the quietest extractors on the market achieve strong performance through better motor design and ducting geometry rather than sheer fan speed. Remote or externally mounted motors, where the noisiest component sits outside the kitchen itself, are worth the additional installation complexity in a household that cooks with real heat regularly.

“We upgraded the extractor twice before finding one we’d actually run on full power,” one Singapore homeowner said. “The first two were either too weak or too loud to use properly.”

Style Without Sacrificing Function

Once power, ducting and noise are resolved, style becomes a genuinely open choice. Integrated extractors, hidden within cabinetry above the hob, suit a minimal kitchen where visible appliances are kept to a minimum. A statement chimney hood, in blackened steel or brushed brass, can become a genuine design feature over an island, particularly in the kind of open kitchen covered in our guide to the art of the open-plan kitchen, where the extractor is one of the few tall elements visible from the living space. Downdraft extractors, rising from the worktop itself, suit an island hob where overhead sightlines matter, though they generally extract less effectively than an overhead hood and suit lighter cooking better than serious wok work.

Sizing and Positioning

An extractor should extend at least as wide as the hob beneath it, and ideally slightly wider, to capture rising air and aerosol that drifts beyond the direct cooking zone. Mounting height matters too — too high, and the extractor loses much of its capturing power; too low, and it becomes both a visual and physical obstruction. Manufacturer guidance on mounting height should be treated as a genuine specification rather than a suggestion, particularly for high-power units designed for wok cooking.

Maintenance and Long-Term Performance

Even the best-specified extractor loses effectiveness quickly without regular maintenance. Grease filters, whether metal mesh or baffle-style, should be cleaned roughly monthly in a household that cooks often with oil, since a clogged filter reduces airflow considerably even on a powerful unit. Ducted systems benefit from an occasional professional check of the ducting itself, particularly in older installations, since a build-up of grease inside the ductwork over years can quietly reduce extraction performance without any obvious sign at the hood itself. Treating the extractor as an appliance that needs upkeep, rather than a fit-and-forget fixture, is what separates a kitchen that stays fresh-smelling for a decade from one that starts to feel like it needs replacing after just a few years.

Choosing the right extractor is rarely the most exciting decision in a kitchen renovation, but it is consistently one of the most consequential for daily comfort — determining whether an open-plan home smells of dinner for an hour afterward or not at all. For more on planning a kitchen that performs as well as it looks, our Homes & Culture section covers layout, appliances and materials in depth, alongside our guide to the art of the statement kitchen range for the appliance the extractor is usually specified alongside.