A range hood insert sits under your kitchen cabinets to pull smoke and cooking odors away from your stovetop while providing overhead lighting. The Broan-NuTone 412404 is a 24-inch non-ducted model that uses a charcoal filter system instead of venting to the outside, making it easier to install than traditional ducted hoods. But before you buy one, it helps to understand whether this type of hood is the right choice for your kitchen and how to keep it working well.

Non-Ducted vs. Ducted Range Hoods: Which Do You Actually Need?

The main difference between a non-ducted hood and a ducted one comes down to where the air goes. A ducted hood pulls cooking vapors out of your home through ductwork that runs to the outside. A non-ducted hood, like the Broan-NuTone 412404, filters the air through charcoal and recirculates it back into your kitchen.

Non-ducted hoods work best if you rent, live in an apartment, or simply cannot install ductwork through your walls or ceiling. They cost less to install because there's no venting work required. The trade-off is that they don't remove moisture from your kitchen the way a ducted hood does, and they rely on replaceable charcoal filters to handle odors and smoke.

If your kitchen has heavy cooking use or you frequently cook foods that create strong odors or steam, a ducted hood performs better. For lighter cooking or kitchens where ducting isn't practical, a non-ducted model is a solid compromise.

Measuring and Installing Your 24-Inch Hood Insert

The Broan-NuTone 412404 measures 24 inches wide, which is a standard size for under-cabinet hoods. Before buying, measure the width of your stovetop and the available space in your cabinetry. Your hood should align roughly with your cooking surface for best performance.

Installation height matters as well. The manufacturer specifies that this hood should be mounted at least 18 inches above your cooktop. Too low and you risk heat damage or accidental contact; too high and the hood becomes less effective at capturing cooking vapors before they spread through your kitchen.

Check whether your cabinet has a mounting space already prepared (called a hood opening or insert recess). If not, you may need to modify your cabinetry before installation. Some people hire a professional installer, while others handle it themselves if they're comfortable with basic carpentry and electrical work.

Two-Speed Fan and Separate Lighting Controls

The Broan-NuTone 412404 has two independent rocker switches: one controls the 2-speed fan, and one controls the incandescent light separately. This design lets you run the light without the fan if you're just eating rather than cooking, which saves energy.

The motor runs at up to 2850 RPM on high speed. On low speed, it uses less energy but still removes odors and smoke. Most people find that low speed handles routine cooking, and high speed kicks in when you're searing, frying, or making anything particularly smoky.

The light accepts a bulb up to 75 watts and uses a protective lens to distribute light evenly across your stovetop. Keep in mind that the bulb is not included, so you'll need to buy one separately.

Caring for Your Charcoal Filter and Keeping It Clean

The charcoal filter is the working part of your non-ducted hood. It traps grease particles and absorbs odors, then the hood recirculates filtered air back into your kitchen. Over time, the charcoal becomes saturated and stops working as well. You'll notice this when cooking smells linger longer than they used to or the hood seems less effective at capturing steam.

Replace the charcoal filter regularly—most manufacturers recommend every three to six months, depending on how often you cook. Check the filter visually if you can; if it looks dark or clogged with grease, it's time for a replacement. Keeping a fresh filter ensures your hood continues to remove odors and smoke effectively and prevents the motor from working harder than necessary.

The stainless steel exterior wipes clean with a damp cloth. Don't use abrasive scrubbers that can scratch the finish.

Is the Broan-NuTone 412404 Right for Your Kitchen?

This 24-inch non-ducted hood works well if you have a cooktop that fits that width, cannot duct to the outside, and don't mind replacing charcoal filters on a regular schedule. It provides both ventilation and task lighting in one unit, and the two-speed fan gives you flexibility in how much air movement you need.

Measure your space carefully, confirm you can install it at least 18 inches above your cooktop, and be prepared to swap out the charcoal filter a few times a year. With those basics covered, the Broan-NuTone 412404 can be a practical and affordable addition to your kitchen.

The product in this guide: Broan-NuTone 412404 Non-Ducted Under-Cabinet Ductless Range Hood Insert, 24-Inch, Stainless Steel