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Fresh Air & Energy Recovery

InAir Revita & Ventura
Energy Recovery Ventilation Units

Revita (compact residential) and Ventura (large commercial) — InAir's ERV workhorses — continuously bring filtered outdoor air into indoor spaces while exhausting stale indoor air, recovering 80–90% of the thermal energy in the outgoing air stream. The result is continuously fresh, filtered, energy-efficient indoor air without burdening your AC system. The Revita handles every home project from 1 BHK to large villas; the Ventura handles offices, schools, and commercial buildings at scale.

Suitable for residences, villas, offices, schools, clinics, commercial spaces, hospitality projects, and institutional campuses.

Filtered fresh air with energy recovery for healthier, more efficient indoor spaces.
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InAir Revita and Ventura Energy Recovery Ventilation Units
Key Features
✓High-efficiency plate-type heat exchanger — 80–90% thermal energy recovery
✓Pre-filter for primary dust filtration + MERV-13 / HEPA-13 fine particle filtration (grade by location)
✓Continuous fresh air supply — reduces CO₂, allergens, humidity and VOCs
✓Single-phase 220V (compact models) to three-phase 440V (large commercial)
✓Durable PUFF panel body with aluminium base frame on large FS models
✓Compatible with IAQ sensors and BMS integration for demand-controlled ventilation
Technical Specifications — Complete Model Range
Revita — INA-MFQR series · Compact residential · 150–500 m³/h
Ventura — INA-QRXF series · Large commercial · 800–7500 m³/h
ModelAirflowHeat ExchangerFiltrationPower SupplyConstructionIdeal For
Revita INA-MFQR-150150 m³/hPlate-type (80–90%)MERV-13 / HEPA-13 (grade by city)220V / 50Hz / 1-PhStandard compact1 BHK · Studio
Revita INA-MFQR-250250 m³/hPlate-type (80–90%)MERV-13 / HEPA-13 (grade by city)220V / 50Hz / 1-PhStandard compact2 BHK Apartment
Revita INA-MFQR-350350 m³/hPlate-type (80–90%)MERV-13 / HEPA-13 (grade by city)220V / 50Hz / 1-PhStandard compact3 BHK Apartment
Revita INA-MFQR-500500 m³/hPlate-type (80–90%)MERV-13 / HEPA-13 (grade by city)220V / 50Hz / 1-PhStandard compact4 BHK / Villa
Ventura INA-QRXF-800800 m³/hPlate-type (80–90%)MERV-13 / HEPA-13 (grade by city)220V / 50Hz / 1-PhStandardLarge Villa / Office
Ventura INA-QRXF-10001,000 m³/hPlate-type (80–90%)MERV-13 / HEPA-13 (grade by city)220V / 50Hz / 1-PhStandardOffice / School Zone
Ventura INA-QRXF-13001,300 m³/hPlate-type (80–90%)MERV-13 / HEPA-13 (grade by city)220V / 50Hz / 1-PhStandardLarge Office / School
Ventura INA-QRXF-15001,500 m³/hPlate-type (80–90%)MERV-13 / HEPA-13 (grade by city)220V / 50Hz / 1-PhStandardCommercial Building
Ventura INA-QRXF-2000-FS2,000 m³/hPlate-type (80–90%)MERV-13 / HEPA-13 (grade by city)220V / 50Hz / 1-PhPUFF panel + Al frameLarge Bungalow / School Block
Ventura INA-QRXF-2500-FS2,500 m³/hPlate-type (80–90%)MERV-13 / HEPA-13 (grade by city)220V / 50Hz / 1-PhPUFF panel + Al frameCommercial / Institutional
Ventura INA-QRXF-3000-FS3,000 m³/hPlate-type (80–90%)MERV-13 / HEPA-13 (grade by city)440V / 50Hz / 3-PhPUFF panel + Al frameInstitutional Building
Ventura INA-QRXF-4000-FS4,000 m³/hPlate-type (80–90%)MERV-13 / HEPA-13 (grade by city)440V / 50Hz / 3-PhPUFF panel + Al frameLarge Commercial
Ventura INA-QRXF-5000-FS5,000 m³/hPlate-type (80–90%)MERV-13 / HEPA-13 (grade by city)440V / 50Hz / 3-PhPUFF panel + Al frameHospital / Campus Block
Ventura INA-QRXF-6000-FS6,000 m³/hPlate-type (80–90%)MERV-13 / HEPA-13 (grade by city)440V / 50Hz / 3-PhPUFF panel + Al frameLarge Campus
Ventura INA-QRXF-7500-FS7,500 m³/hPlate-type (80–90%)MERV-13 / HEPA-13 (grade by city)440V / 50Hz / 3-PhPUFF panel + Al frameIndustrial / Campus
Best Applications

Typical applications

Villas & Premium Apartments Offices & Co-working Schools & Classrooms Clinics & Healthcare Hospitality & Restaurants Urban High-AQI Environments High-Occupancy Rooms
Not sure whether MERV-13 or HEPA-13 is right for your city?

Filter requirements differ by location. Delhi winters need HEPA-13. Hyderabad and Bangalore may need different grades. Coastal cities have humidity considerations. Tell us your city — our engineer will recommend the right filter grade.

Frequently Asked Questions — Fresh Air & ERV Systems
For a standard 3 BHK (1400–1600 sq ft, 4 occupants), the INA-MFQR-350 at 350 m³/h meets ASHRAE 62.1 fresh air requirements. For a larger 3 BHK (1800+ sq ft or 5 occupants), the INA-MFQR-500 at 500 m³/h is recommended. Our engineers calculate exact airflow requirements based on your specific floor plan and occupancy during the free site survey.
The plate heat exchanger recovers 80–90% of the thermal energy from outgoing stale air and transfers it to incoming fresh outdoor air — before filtration. This means fresh air arrives very close to room temperature. Your AC does not need to cool raw 40°C outdoor air from scratch. Net electricity impact: near-zero. In our Mumbai case study, this contributed to a 1.2–1.9 year system payback period.
MERV-13 / HEPA-13 (Minimum Efficiency Reporting Value 13) is the filter grade used in hospitals — it captures 99%+ of PM2.5, pollen, mould spores, dust mites, and most airborne bacteria. A standard residential filter (MERV-5 to MERV-8) captures only larger particles above 10 microns. On high-AQI days in Delhi or Hyderabad, only MERV-13 / HEPA-13 filtration provides meaningful PM2.5 protection. All InAir ERV units include MERV-13 / HEPA-13 (HEPA-13 optional) as standard — not an upgrade.
Yes — renovation is the second-best time to install (construction is ideal). During renovation when false ceilings are open and walls are accessible, ducting can be routed cleanly before finishing. This is significantly easier and cheaper than post-renovation installation. If you are planning a kitchen renovation, bathroom upgrade, or repainting, contact InAir during that phase for the cleanest installation outcome.

How is InAir Revita & Ventura Energy Recovery Ventilation Units 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.

Product questions

What do specifiers ask about this range?

Revita (compact residential) and Ventura (large commercial) — InAir's ERV workhorses — continuously bring filtered outdoor air into indoor spaces whil. In practice that means villas & premium apartments, offices & co-working, schools & classrooms, clinics & healthcare. 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, high-efficiency plate-type heat exchanger — 80–90% thermal energy recovery. Second, continuous fresh air supply — reduces co₂, allergens, humidity and vocs. Third, single-phase 220v (compact models) to three-phase 440v (large commercial). 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 revita & ventura energy recovery ventilation units that usually means villas & premium apartments, offices & co-working, schools & classrooms, clinics & healthcare. 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 revita & ventura energy recovery ventilation units model delivers it, the filter grade your city calls for, and an installed cost. Typical duty for this range is villas & premium apartments, offices & co-working, schools & classrooms, clinics & healthcare. If the building already ventilates adequately, we say so rather than quoting.