Best Exhaust Fans for Kitchen and Bathroom in India (2026): Sizes, Prices, and What Actually Fits Your Room

Most exhaust fan buying guides list five random fans and call it a day, without explaining the one thing that actually decides whether the fan works: size versus room. This guide covers what size exhaust fan you need for a kitchen or bathroom, the real difference between the two use-cases, and the best exhaust fans live on RichDeals right now with real prices.

Kitchen Exhaust Fan vs Bathroom Exhaust Fan — Different Jobs

A kitchen exhaust fan has to fight grease, smoke, and steam from cooking, which means it needs a stronger motor and a design that's easy to wipe down — grease builds up on the blades fast and cuts airflow if you never clean it. A bathroom exhaust fan mainly deals with moisture and odour, so the priority shifts to rust resistance (humid environment, corroding metal parts) and quiet operation, since bathrooms are small and every sound is amplified.

Buying a bathroom-spec fan for a kitchen is the most common mistake — it clogs with grease fast and loses power within months. Look for "kitchen" or "high-suction" in the product description, not just any exhaust fan with the right size.

What Size Do You Actually Need

Exhaust fans are sold by blade sweep size — 100mm, 150mm, and 230mm are the common sizes for Indian homes:

Room type	Recommended size	Why
Small bathroom (attached, under 40 sq ft)	100mm	Enough for moisture/odour in a tight space
Standard bathroom or small kitchen	150mm	The most common size — balances airflow and noise
Large kitchen or bathroom with a window far from the cooking/shower area	230mm	Needs the extra suction to clear the room fast

Undersized fans run constantly without ever fully clearing the room; oversized fans in a small room are just louder and pull cold air in aggressively during winter. If you're between two sizes, size down for a bathroom (quiet matters more) and size up for a kitchen (clearing smoke fast matters more).

Best Exhaust Fans Live on RichDeals Right Now

Product	Size	Price	Best for
RR Signature Vento Fresh Luxura Exhaust Fan (Rose Gold)	150mm	₹699	Standard bathroom, decent looks for a visible install
RR Vento Air Exhaust Fan (Kitchen-rated)	100mm	₹699	Small kitchen or tight bathroom, silent operation claimed
Crompton Brisk Air Neo Exhaust Fan	200mm	₹664	Budget pick for a mid-size kitchen or bathroom
Polycab Freshly Prime Exhaust Fan	150mm	₹1,099	Kitchen and bathroom rated, easy-clean design
Havells Ventil Air DSP Exhaust Fan	150mm	₹1,190	Rust-proof body, stronger suction for daily kitchen use
Havells Ventil Air DSP Exhaust Fan (Pista Green)	230mm	₹1,490	Large kitchen needing maximum suction
Amazon Basics Fresh Air Exhaust Fan (40W)	230mm	₹890	Budget large-size option

For most Indian bathrooms, the RR Signature 150mm at ₹699 is the pick that balances price and standard sizing. For kitchens dealing with regular grease and smoke, step up to the Havells Ventil Air DSP — the rust-proof body and stronger motor hold up better than budget fans after a year of daily cooking. Check RichDeals /offers for whichever is cheapest today, since prices on these move week to week.

Installation Tips

• Window vs wall duct: A fan mounted in an existing window frame with a simple board cutout is the cheapest install. A wall duct (cutting through brick) needs a mason and costs more but looks cleaner and works for rooms with no outward-facing window.
• Backflow shutter: Cheaper fans skip this, letting outside air (and insects, dust, smells) blow back in when the fan is off. If your fan doesn't have an automatic shutter, a simple external cowl/hood over the outside vent solves most of the problem for a few hundred rupees.
• Direction matters: The fan should push air out of the room, not pull outside air in — check the blade direction before final mounting, it's a common installation mistake with reversible fans.
• Wiring: Exhaust fans should ideally be on their own switch, not tied to the main light — you'll run it longer than the light after cooking or a shower, and a shared switch defeats that.

FAQ

What size exhaust fan do I need for a 6x8 ft bathroom? A 100mm or 150mm fan is enough for that size. Go with 150mm if the bathroom also tends to stay humid for a while after use (no window, attached to a bedroom).

Do kitchen exhaust fans need cleaning more often than bathroom fans? Yes — grease builds up on kitchen fan blades within weeks of regular cooking and cuts airflow noticeably if ignored. Wipe the blades down monthly; bathroom fans need cleaning far less often since they mainly deal with moisture, not grease.

Is a 230mm fan overkill for a small kitchen? For a genuinely small kitchen (under 60 sq ft) with the window near the stove, yes — 150mm is usually enough. 230mm makes more sense for open kitchens or ones where the vent is far from where the smoke actually rises.

Can I install an exhaust fan myself? If you already have a window-mounted board cutout or an existing duct hole, yes, most exhaust fans install with basic tools in under 30 minutes. Cutting a new wall duct through brick needs a mason.

Do these exhaust fans work during a power cut? No — like any electric fan, they need mains power. If you're in an area with frequent outages, factor that into whether you also want passive ventilation (a window that opens) as backup, not just an exhaust fan.