Overview
The KL-D-B9 is a household recirculating purifier that merges the hood and the purification unit into a single appliance. Cooking fumes are drawn in, filtered through a multi-stage stack inside the body, and returned to the room as clean air – no duct to the outside, no shared flue, no wall penetration. It runs on an ordinary 220 V household socket: hang it, plug it in, and cook.
Airflow is 14 m³/min (about 840 m³/h) against 400 Pa of static pressure, driven by an inverter fan with nine speed steps, so a slow simmer runs quiet and low while a wok session steps up automatically. Grease purification efficiency is 95% or better and odour removal at least 80%, and because the fan holds a constant pressure curve, airflow does not fall away as the filters load up.
The body measures 890 x 450 x 900 mm and weighs 50 kg, hung on the wall with the supplied hardware. From the front it reads as a normal angled glass hood – tempered-glass panel, touch controls, twin LED lights – so it does not look like an industrial unit sitting over a home hob.
Problems It Solves
Most homes take the flue for granted until they cannot have one. Older buildings without a shared shaft, apartments where drilling through an external wall is not allowed, open-plan kitchens in the middle of the floor plate, rentals where no permanent work is permitted – in all of these, a conventional ducted hood simply has nowhere to discharge. The KL-D-B9 removes the discharge problem instead of working around it.
| Constraint | With a conventional hood | With the KL-D-B9 |
|---|---|---|
| No shared flue in an older building | A ducted hood cannot be installed, or a long awkward duct run has to be built | Hangs on the wall and recirculates; no duct work at all |
| Open-plan kitchen | Cooking smell and grease drift into the living area | Fumes are filtered and returned as clean air; the living area does not carry the smell of dinner |
| Rental apartment, no drilling allowed | Permanent installation is not permitted, cooking stays on a balcony or with a countertop unit | Wall-hung on the supplied hardware and plugs into a socket; the unit can be removed when the tenancy ends |
| Kitchen in the middle of the plan | The nearest external wall is too far for a practical duct run | Recirculation removes the dependency on wall position entirely |
| Smoke-sensitive household | Odour lingers after cooking, affecting children and older family members | 80% or better odour removal; the kitchen does not hold the smell after the meal |
How It Works
Fumes rise from the hob into the angled intake and pass through a multi-stage filter stack: grease is captured first, then fine oil mist and the burnt, acrid fraction that carries most of the smell. The cleaned air is returned to the room at the top of the unit. Nothing is ducted outside, so nothing is vented out of an air-conditioned or heated space either.
The fan is an inverter type with nine speeds. It reads the cooking load rather than running at one fixed setting: low speed covers simmering quietly and economically, and high speed engages automatically for searing and stir-frying. Compared with a fixed-speed unit the inverter design uses roughly 40% less energy for the same capture, and it runs the filters more gently, which extends their life.
Because the fan is designed to hold a constant pressure output, airflow stays close to spec even as the filters accumulate grease – the decline that makes most recirculating hoods feel weaker after a few months is designed out. Grease purification efficiency is 95% or better; odour removal is at least 80%.
Key Technologies
True recirculation, no outdoor duct
The unit is engineered as a closed loop: intake, filter stack, clean-air return, all inside one 50 kg body. A 180 mm spare duct port is provided, so if a flue exists it can still be connected, but in recirculation mode nothing needs to be attached to it.
Inverter fan, nine speeds
Speed follows the cooking. Low settings cover slow braising at conversational noise levels; high settings answer heavy stir-frying. The same inverter control is what delivers the roughly 40% energy saving over fixed-speed units and keeps filter life long.
95% grease purification, 80% odour removal
The filter stack captures oil mist and burnt-odour molecules together, so the air returned to the room does not smell of cooking. Heavy, spicy, high-smoke formats are still recommended to run on high speed with regular filter changes.
35 to 65 dB operating noise
Low speed runs at about 35 dB – library-quiet – and even the highest stir-fry setting stays around 65 dB, roughly the level of normal conversation, so the kitchen remains a place people can talk in.
Tempered-glass panel
The front face is tempered glass that wipes clean in one pass. Visually it matches a conventional angled household hood, which matters in an open-plan space where the kitchen is always on display.
220 V household supply, full hanging kit
No circuit changes, no gas connection. Four lifting rings, 8 m of steel rope, four turnbuckle hooks and seven expansion bolts are supplied; wall-hang the unit, plug it in, and it is in service.
Specifications
| Model | KL-D-B9 |
| Dimensions (W x D x H) | 890 x 450 x 900 mm |
| Panel | Tempered glass |
| Airflow | 14 m³/min (approx. 840 m³/h) |
| Maximum static pressure | 400 Pa |
| Noise level | 35 – 65 dB |
| Grease purification efficiency | 95% or better |
| Odour removal | 80% or better |
| Speed control | Inverter, 9 speeds |
| Lighting | 5 W x 2 LED |
| Fan power | 240 W |
| Total power | 250 W |
| Voltage | 220 V / 50 Hz |
| Body material | Carbon steel |
| Installation | Wall-hung |
| Net weight | 50 kg |
| Spare duct port | 180 mm (for optional ducted connection) |
Installation
The unit is wall-hung, and the wall must be able to carry 50 kg safely. Everything needed for a standard installation is in the box:
- 4 lifting rings on the body as attachment points
- 8 m of steel suspension rope, enough for standard ceiling and wall geometry
- 4 turnbuckle hooks for levelling and tensioning
- 7 expansion bolts for the wall fixings
Professional installation is recommended – not because the unit is complicated, but because a 50 kg appliance above a cooking surface deserves correct fixings in sound masonry. Electrical requirement is a normal 220 V socket within reach; no dedicated circuit, no gas line.
Where It Fits
| Setting | Why a ducted hood fails there | What the KL-D-B9 does |
|---|---|---|
| Older homes and second-hand flats | No shared flue was ever installed; retrofitting a duct means opening walls or ceilings | Hangs on the wall, plugs in, recirculates – no duct run needed |
| Open-plan kitchens | Smoke and smell drift straight into the living and dining space | Filters fumes and returns clean air, so the living area stays free of cooking smell |
| Rented apartments | Tenants cannot drill external walls or modify pipework | Installs on supplied hardware and leaves with the tenant when the lease ends |
| Villas, duplexes and large flat plans | Kitchen sits in the middle of the plan, far from any external wall | Recirculation removes the distance problem entirely |
| Households sensitive to fumes | Conventional extraction leaves residual odour in the room | 80%+ odour removal; the kitchen does not carry the smell of the last meal |