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Toilet Exhaust & Odour Control

Toilet Exhaust &
Odour Control Fans

InAir toilet exhaust systems are designed to remove odours, humidity, stale air, and pollutants from toilets, restrooms, cloakrooms, washrooms, service areas, and utility zones. The range covers compact residential exhaust fans to large ducted commercial exhaust systems — including silent, ultra-thin, EC smart, and high-capacity options.

InAir Toilet Exhaust & Odour Control Fans
✓Maintains negative pressure in toilet zones — prevents odour migration
✓Removes odours, humidity and stale air at source
✓Compact and ultra-thin silent options for residential spaces
✓EC smart controller options for demand-based operation
✓Suitable for both ducted and direct exhaust layouts
✓Compatible with individual toilets and common toilet block systems
✓Options for homes, offices, malls, schools, hotels, and commercial restrooms
✓Can be integrated into larger building exhaust systems

Range includes mixed flow fans, direct duct fans, ultra-thin silent fans, EC inline duct fans with smart digital controllers, and kitchen/utility exhaust fans. Request datasheet for specific model specifications.

Download specification sheet Request selection support

Typical applications

Homes & ApartmentsOfficesHotels & MallsSchoolsRestaurantsCommercial ToiletsPublic Restrooms

How is Toilet Exhaust & Odour Control Fans sized?

Sizing starts from the air the space actually needs, not from the size of the room. For occupied spaces that means airflow per person under ASHRAE 62.1 — CO2 is produced by people, so a crowded small room needs more air than an empty large one. For process and extract duties it means the required air changes per hour for the activity. Once the airflow is fixed, the duct route sets the static pressure the unit has to overcome, and those two numbers together select the model.

Three things change the answer in India specifically: outdoor temperature at the design peak, which decides how much heat recovery is worth paying for; outdoor humidity, which decides whether passive recovery is enough or active dehumidification is needed; and local AQI, which sets the filter grade — MERV-13 for ordinary urban particulate, HEPA-13 where AQI regularly passes 200. The city pages give the design figures for fifteen Indian cities.

Where does it install?

Installation is cheapest and least disruptive during construction or renovation, when ducting is concealed inside the ceiling void and no finished surface is disturbed. In a completed interior the same result is reached with surface-run ducting in a boxed soffit, or with a standalone unit that needs only a core-cut through an external wall. A typical residential installation is commissioned in ten to twelve days from order.

Every installation includes a site survey, duct design, commissioning with measured airflow readings, and handover. Send a floor plan to sales@in-air.in and we will size it and quote it.

What does it cost to run?

Two figures matter. The fan draws continuous power, which is small — residential units run in the tens of watts. The larger figure is what the unit saves: recovering heat from the air being exhausted means the incoming air arrives closer to room temperature, so the air conditioner does less work. In a Hyderabad summer, incoming air at 44°C reaching the room at 26–28°C is the difference between an AC that copes and one that runs continuously. Filters are the recurring cost, changed on a schedule that depends on local AQI.

Further reading

Product questions

What do specifiers ask about this range?

InAir toilet exhaust systems are designed to remove odours, humidity, stale air, and pollutants from toilets, restrooms, cloakrooms, washrooms, servic. In practice that means homes & apartments, offices, hotels & malls, schools. Selection starts from the duty the space needs rather than from the size of the room: airflow first, then the static pressure the duct route imposes, then filtration and controls. Get those three right and the equipment follows.
Three things. First, maintains negative pressure in toilet zones — prevents odour migration. Second, removes odours, humidity and stale air at source. Third, compact and ultra-thin silent options for residential spaces. What matters is not the datasheet but that the specification is chosen for Indian operating conditions — sustained heat, monsoon humidity and a particulate load that shortens the life of equipment designed for a temperate climate.
Five steps, in order. Define the duty — for toilet exhaust & odour control fans that usually means homes & apartments, offices, hotels & malls, schools. Calculate the airflow from occupancy under ASHRAE 62.1 rather than from floor area. Check the static pressure the duct route imposes, which is what separates two units of the same rated airflow. Add the filter grade your city calls for. Then validate against the published performance curve.
Yes, and the survey costs nothing. Send a floor plan with occupancy and intended use to sales@in-air.in and an engineer returns the airflow the space needs, which toilet exhaust & odour control fans model delivers it, the filter grade your city calls for, and an installed cost. Typical duty for this range is homes & apartments, offices, hotels & malls, schools. If the building already ventilates adequately, we say so rather than quoting.