Kitchen Exhaust Fan in Pakistan: How to Choose the Right Royal Metal Exhaust Fan Size
A ceiling fan can make a kitchen feel breezier, but it does not perform the same job as an exhaust fan.
Cooking creates warm air, odours, smoke and airborne particles that need a route out of the space. Bathrooms, stores and work areas can have their own problems with stuffiness and unwanted indoor air.
Royal's Metal Exhaust Fan is designed specifically for ventilation. The current product is available in 8, 10, 12, 16 and 18-inch sizes, with square and round styles.
Royal states that it is designed to drive away smoke, dust, odour and other pollutants, and lists offices, kitchens, bathrooms and stores among the intended applications.
The useful question is therefore not simply: “Do I need an exhaust fan?” It is: “Which size and airflow level make sense for the ventilation job I have?”
What Does an Exhaust Fan Do Differently?
A ceiling or pedestal fan primarily circulates air within a space. An exhaust fan is installed to move indoor air towards an outlet.
In a kitchen, that can help remove cooking-related smoke and odour from the room. In a bathroom, it helps move stale, moisture-laden air out. In a store or work area, it can form part of the room's general ventilation arrangement.
Royal specifically positions its Metal Exhaust Fan for smoke, dust, odour and pollutant removal across kitchens, baths, offices and stores.
For the process to work properly, extracted air needs an appropriate route out. An exhaust fan should therefore form part of a sensible ventilation arrangement rather than merely pushing air into another enclosed cavity.
Replacement air must also be able to enter the room through an appropriate opening or planned airflow route. That is why installation matters almost as much as the fan specification.
Five Sizes With Very Different Airflow
Royal publishes detailed size-by-size data for this model.
The jump from an 8-inch to an 18-inch exhaust fan is not merely a difference in physical diameter. Rated power and air delivery change significantly.
| Size | Sweep | Rated Power | Speed | Air Delivery | Service Value |
|---|---|---|---|---|---|
| 8" | 200 mm | 35W | 1350 RPM | 14.5 m³/min | 0.41 m³/min/W |
| 10" | 250 mm | 40W | 1350 RPM | 25 m³/min | 0.63 m³/min/W |
| 12" | 300 mm | 45W | 1335 RPM | 32 m³/min | 0.71 m³/min/W |
| 16" | 400 mm | 110W | 1365 RPM | 90 m³/min | 0.82 m³/min/W |
| 18" | 450 mm | 125W | 1335 RPM | 110 m³/min | 0.88 m³/min/W |
Royal also lists the product at 230±10V, 50 Hz, with an insulation class of 155. The product page states electrical steel sheet construction and 99.99% pure copper wire winding.
Why Air Delivery Matters More Than Just Inches
It is tempting to measure an existing wall opening and choose an exhaust fan based entirely on diameter.
Physical fit certainly matters. But air delivery tells you more about what the fan is designed to move.
Consider the progression in Royal's published figures:
- 8-inch: 14.5 m³/min
- 10-inch: 25 m³/min
- 12-inch: 32 m³/min
- 16-inch: 90 m³/min
- 18-inch: 110 m³/min
That is a very significant change. It is also accompanied by a change in rated power: 35W, 40W, 45W, 110W and 125W respectively.
So “bigger” is not simply a design preference. Higher-air-delivery versions move substantially more air but also have higher rated electrical power.
A sensible purchase therefore balances: installation opening + ventilation demand + airflow + power consumption.
Which Size Should You Choose for a Kitchen?
There is no responsible way to say that one Royal Metal Exhaust Fan size is correct for every Pakistani kitchen based only on floor area.
Ventilation demand can change according to:
- Room volume
- Cooking intensity
- Heat sources
- Number and type of cooking appliances
- Outlet/duct resistance
- The ability of replacement air to enter
- Installation position
For that reason, this guide does not use a made-up chart claiming that an 8-inch model is automatically for one square-foot range and a 12-inch fan for another. Royal does not provide such a room-size chart for this product.
Instead, use the official airflow figures as your comparison.
For a lower ventilation requirement or a smaller mounting opening, the 8, 10 and 12-inch options provide progressively greater airflow while remaining between 35W and 45W.
Where a substantially higher ventilation requirement exists and the installation can accommodate it, the 16 and 18-inch variants provide 90 and 110 m³/min respectively.
That does not mean every large kitchen automatically requires an 18-inch fan.
A Simple Way to Approximate the Airflow You Need
As a starting point, aim to move the room's air roughly once every 20 minutes:
Room volume (height × width × length) ÷ 20 minutes = minimum airflow required
For example, take a kitchen measuring 3.6 m × 3.0 m with a 3.0 m ceiling (about 12 ft × 10 ft × 10 ft):
- Room volume: 3.6 × 3.0 × 3.0 = 32.4 m³
- Minimum airflow: 32.4 ÷ 20 = about 1.6 m³/min
Compare that figure against the published air-delivery column above. Heavier cooking, longer cooking sessions and a restricted outlet all push the real requirement higher than this simple minimum, which is why the published figures are a comparison tool rather than a guarantee for every installation.
Beyond the formula, also consider the shape of the room. If it is long and rectangular, multiple smaller fans placed along the longer wall may provide better air circulation than one large unit. When placing exhaust fans on opposite walls, make sure the air is moving in the same direction.
Too much airflow is also not ideal. An exhaust fan that is significantly larger than the requirement can cause problems such as doors becoming hard to open or air humming through gaps in windows and doors.
Royal gives buyers enough technical information to discuss the correct selection with an installer instead of guessing.
What About Bathrooms, Stores and Offices?
Royal specifically lists kitchen, bath, office and store among the product's applications. The same selection logic applies in each environment.
A bathroom may be primarily dealing with moisture and stuffiness. A kitchen may need stronger removal of heat, cooking odours and smoke. A store may need general air exchange. An office may already form part of a broader ventilation system.
So the correct size should follow the actual ventilation requirement, not simply the label placed on the room.
Think About Mounting Before You Buy
Before buying, consider where the fan needs to be mounted.
The Metal Exhaust Fan is a wall or window-style ventilation product, supplied in square and round formats. If your renovation or room design calls for a different mounting arrangement, compare the options in Royal's wider exhaust fan collection rather than forcing this product into an unsuitable position.
Choosing the mounting type early is especially useful during kitchen or bathroom renovation, when openings, tiles, ceilings and wiring can be planned around the ventilation system.
Square or Round: Which Style Is Better?
Royal offers the Metal Exhaust Fan in square and round styles.
However, the official product page does not publish separate airflow tables showing that one of these shapes outperforms the other. Therefore, it would be misleading to claim that square is inherently more powerful, or that round is inherently more efficient.
Treat the style choice primarily as an installation and appearance decision. Check:
- The existing opening
- Frame dimensions
- Surrounding wall surface
- Intended mounting
- How the shape integrates with the room
Then verify that the selected variant can be installed safely and securely.
Electrical Steel Sheet and Copper Winding
Royal states that the Metal Exhaust Fan is made using electrical steel sheet and 99.99% pure copper wire winding.
These are more meaningful details than the appearance of the ventilation cover alone, because an exhaust fan is a working electrical appliance.
However, construction quality does not remove the need for maintenance. Kitchen ventilation openings can accumulate grease and dust, and bathroom environments can be humid.
The fan should remain accessible for appropriate cleaning, and power should be isolated before safe maintenance is performed according to the product instructions.
Warranty and Product Registration
Warranty coverage and conditions are listed on the product page and in Royal's warranty terms, which note that product-specific periods can vary by category and model. Check the product page, invoice and warranty card for the coverage that applies to the size and style you buy.
Customers can scan the QR code on the packaging and the product to verify that it is a genuine Royal product, and can register the product through Royal's support section, which also handles home-service requests and service-request tracking.
Installation Mistakes Can Reduce Performance
Even an exhaust fan with high published air delivery can underperform if the installation works against it.
Practical problems can include:
- An obstructed outlet
- No clear discharge route
- Insufficient replacement air
- Dirt or grease restricting the fan
- Unsuitable mounting
- Incorrect electrical installation
Royal lists the product for a rated electrical supply of 230±10V at 50 Hz, so the installation should match those requirements.
It is also worth planning ventilation before kitchen cabinetry, tiles or bathroom renovation work is finalised. Creating the correct opening and outlet route during construction is much cleaner than trying to retrofit ventilation after everything else is complete.
A Simple Buying Process
A sensible selection process looks like this:
- Identify the location: kitchen, bathroom, office, store or another area.
- Confirm the mounting position and available opening.
- Decide whether square or round suits the installation.
- Calculate the airflow requirement using the formula above.
- Compare Royal's published air-delivery figures.
- Consider rated power alongside airflow.
- Confirm where extracted air will discharge.
- Make sure replacement air can enter appropriately.
- Have the electrical and mounting requirements checked before installation.
This is far more reliable than simply choosing the biggest exhaust fan available.
Is the Royal Metal Exhaust Fan Right for Your Space?
The strongest aspect of the Royal Metal Exhaust Fan is choice backed by published performance data.
Instead of one generic size, customers can choose from 8, 10, 12, 16 and 18 inches.
For a Pakistani kitchen, bathroom, store or office, that allows the product to be selected around a real ventilation requirement rather than guesswork.
Review the exact Metal Exhaust Fan product page, compare Royal's wider exhaust collection, and confirm the opening and airflow requirement with your installer.
An exhaust fan works best when it is treated as part of the room's ventilation plan, not as an afterthought.
FAQs
Can the Royal Metal Exhaust Fan be used in a kitchen?
Yes. Royal specifically lists kitchen, bath, office and store applications and says the product is designed to remove smoke, dust, odour and other pollutants.
What sizes are available?
The Royal Metal Exhaust Fan is currently offered in 8, 10, 12, 16 and 18-inch sizes, in square and round styles.
Which Royal exhaust-fan size is best for my kitchen?
Royal does not publish a universal room-square-footage chart for this product. Choose based on installation opening, required ventilation, airflow and the actual room conditions. If uncertain, use the published airflow figures and obtain installer guidance rather than guessing.
How much air does the Royal Metal Exhaust Fan move?
Depending on size, Royal lists air delivery from 14.5 m³/min for the 8-inch model up to 110 m³/min for the 18-inch model.
Is the Royal Metal Exhaust Fan available in square and round versions?
Yes. Both square and round styles are available on the current product page. Royal does not provide separate performance specifications for the two shapes.
What warranty comes with the Royal Metal Exhaust Fan?
Warranty coverage is stated on the product page and in Royal's warranty terms. Product-specific conditions and purchase documentation should be checked for exact coverage.
Product facts and warranty references in this article are based on Royal Fans official website information reviewed on 8 September 2026.
