KDK vs Panasonic exhaust fans — which one wins for your bathroom or kitchen?

This is the question we get asked at least twice a week at our Bandar Sri Damansara showroom: "KDK ke Panasonic ke?" And the awkward answer most retailers won't give you is — they're owned by the same company. Panasonic acquired KDK years ago, and in Malaysia both brands still sell side by side, sometimes with overlapping models, sometimes with quietly different builds.

So which one is actually better for your bathroom or your kitchen window? Here's the honest breakdown, with the specific models we sell most often and where each one earns its keep.

A quick word on the brand history

KDK (Kawasaki Denki Kogyo) is the original Japanese fan brand — your parents almost certainly had one. Panasonic bought KDK and kept the brand alive because in Southeast Asia, "KDK" still carries enormous trust. Today, many KDK models are engineered in the same factories using Panasonic's motor technology, but with the classic KDK body shape and Malaysian-market tuning. Panasonic-branded exhaust fans tend to lean more modern, slimmer, and more European in styling.

In other words: KDK is the trusted Honda Civic of bathroom fans, Panasonic is the slightly newer SUV. Same parent company, different positioning.

At a glance

Build quality and finish

Both brands are genuinely well built. Plastic mouldings are clean, screws bite properly, blades are balanced, motors don't hum. Where they differ:

KDKstill uses a traditional design language — slightly thicker housings, visible screws on some ceiling units, the unmistakable "KDK look" with the chrome-ish louvre grill on wall units. It feels familiar and bulletproof. Repair shops in Malaysia know every KDK model by heart.

Panasonic newer ceiling units (the FV series) are noticeably slimmer and flush-mount-friendly. The grills are flatter, the white is whiter, and they suit modern minimal bathroom designs better. Trade-off: replacement parts can take a week or two longer to source because there are more SKUs in the lineup.

Build quality winner: tie. Both will outlast your renovation. Panasonic wins on aesthetics, KDK wins on serviceability.

Airflow, noise and what those CMM numbers mean

CMM = cubic metres per minute. A typical 5x7 ft Malaysian bathroom needs roughly 1.0-1.5 CMM to clear steam in about 8 minutes. A wet kitchen with a gas hob needs much more — 7 CMM and up.

Don't just chase the biggest CMM number. The reason: bigger fans are louder, and a noisy bathroom fan gets switched off and never used again. The Panasonic FV-15CD1 at 27 dB is genuinely quiet — quieter than your aircon at low speed. The KDK 25AUFA wall-mount at 42 dB is noticeably louder but moves five times more air.

Rule of thumb we give walk-in customers:

• Bathroom, normal size: 1.5-2.0 CMM is plenty. Prioritise quietness.
• Kitchen with gas cooking: 7-10 CMM minimum. Noise is less important — you want grease and heat out fast.
• Yard/laundry area: 5-7 CMM. Window-mount works fine.

Ducted vs ductless — the Malaysian context

This is where most buyers get tripped up. In Malaysia, ceiling-mounted bathroom exhausts must duct the air somewhere — into the ceiling void only "works" if your house has a proper ventilated soffit or roof eave. Otherwise you're just dumping humid air into your ceiling space and growing mould inside your drywall.

Ducted ceiling fans (KDK 15WUC, Panasonic FV-15CD1, FV-20CUT1) — you'll need a PVC duct (typically 4" or 100mm) running from the fan to a soffit vent or external wall. These are the right answer for upstairs bathrooms in landed homes with proper roof eaves, and for condo bathrooms that already have a designated exhaust shaft.

Wall-mount louvre fans (KDK 25AUFA)— direct through-the-wall, no duct. Perfect for ground floor bathrooms on an exterior wall, or any bathroom where there's a window or external wall available. Cheaper to install, easier to service.

Window/kitchen-mount fans (KDK 20RQN5, Panasonic FV-25RU7) — louvre-style, sits in the window opening. Standard Malaysian kitchen yard window setup. Both brands do these well; Panasonic FV-25RU7 moves more air, KDK 20RQN5 is more affordable.

Warranty and after-sales

In practice, both honour warranty without drama. The real difference is that KDK has been sold in Malaysia for so long that even small local electrical shops can fix one with off-the-shelf parts. A Panasonic FV ceiling fan that fails out of warranty is more often a "replace the whole unit" job because the SKUs change every few years.

Common Malaysian installation patterns

Wall-mount above the shower (bathroom on an external wall) — KDK 25AUFA is the default choice. Cheap to install (an electrician can drill the hole and mount it in an afternoon), powerful enough for steam clearance, and you can hear the workmanship by ear — it just thrums on, no whine. Pair with an IP65 downlight over the shower per our IP rating guide.

Ceiling-mount with PVC duct (interior bathroom, no external wall) — Panasonic FV-15CD1 if you want quiet and modern, KDK 15WUC if you want budget and bombproof. Both need that duct routed properly to a soffit or external vent — please don't just dump the duct into the ceiling void.

Kitchen window — Panasonic FV-25RU7 if your hob is gas and you cook Asian (wok, oil, fish). KDK 20RQN5 if your kitchen is more dry-cooking or you have a separate range hood doing the heavy lifting.

Toilet/yard area, low-use — KDK 15WUC ducted or the cheapest Panasonic equivalent. No need to spend up.

Which one we'd recommend for...

Quiet bathroom (master bath, where you don't want to hear the fan run) — Panasonic FV-15CD1. The 27 dB rating is real. You can leave it running while you sleep and not notice.

Best value, no-fuss bathroom — KDK 25AUFA wall-mount. Around RM280-380, twenty years of proven reliability, and every electrician in KL knows how to install it.

Heavy-duty kitchen (gas wok, Malaysian Chinese cooking) — Panasonic FV-25RU7. Higher CMM, better grease tolerance on the motor seals.

Light-duty kitchen or yard — KDK 20RQN5. Does the job at a kinder price.

Ducted ceiling install where you want it to disappear — Panasonic FV-20CUT1. Slim profile, flush grille, strong airflow. The premium choice and it earns it.

Budget renovation, multiple bathrooms — KDK across the board. Buy three, save the difference, all of them will outlast the tiles.

See and compare in person

CMM numbers and dB ratings are useful, but exhaust fans are one of those products where you really should hear them running before you commit. Our Bandar Sri Damansara showroom (No. 7, 8 & 9, Jalan Emas SD 5/1B) has working KDK and Panasonic units mounted at eye level so you can flick them on, listen, and feel the suction. Bring the dimensions of your bathroom or kitchen window — we'll match you to the right CMM and the right mounting style in five minutes.

WhatsApp +60 11-5696 8200 if you want a quote before you visit, or photos of your existing installation if you're replacing a dead unit and want to know what'll fit the same hole.