Hyderabad · Telangana

Fresh Air Ventilation in Hyderabad

Hot semi-arid — extreme summer heat, moderate humidity

InAir Fresh Air Ventilation in Hyderabad
Summer temp
40–44°C
Humidity
40–65% RH
AQI range
80–150
Filter grade
MERV-13 standard

What makes ventilation difficult in Hyderabad?

Hyderabad summers peak at 44°C — among India's hottest. Homes seal windows completely in April–June. ERV heat recovery is critical here: without it, fresh air intake at 44°C dramatically increases AC load. Humidity is moderate, making standard ERV the right choice.

Which machine is right for Hyderabad?

Revita ERV + MERV-13

80–90% heat recovery means incoming 44°C outdoor air is pre-cooled to ~26–28°C before reaching the AC — dramatically reducing cooling load. Humidity is manageable without active dehumidification. MERV-13 handles road dust and urban PM2.5 adequately. The Revita

For Hyderabad we specify Revita ERV as the default, with MERV-13 standard filtration. Models: Revita, INA-MFQR-350, (most popular for 3 BHK), Ventura INA-QRXF (commercial), INA-MFQR-350, is our most popular model for Hyderabad 3 BHK apartments.. Model-by-model airflow, static pressure and power figures are on the spec sheets.

Typically installed in: 3 BHK apartments · Villas · IT offices · Schools.
Also worth considering: RHP for large commercial spaces or premium projects requiring active temperature control

How is a system sized here?

Sizing is driven by occupancy, not floor area — CO2 comes from people, so a small crowded flat needs more air than a large empty one. ASHRAE 62.1 sets the airflow per person; that number picks the unit. Hyderabad then adds two local constraints: a summer peak of 40–44°C, which decides how much heat recovery is worth paying for, and humidity of 40–65% RH, which decides whether plain recovery is enough or whether active dehumidification is needed.

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Further reading

Hyderabad questions

What do people in Hyderabad ask?

Hyderabad sees an AQI range of roughly 80–150 through the year. Hyderabad summers peak at 44°C — among India's hottest. Homes seal windows completely in April–June. ERV heat recovery is critical here: without it, fresh air intake at 44°C dramatically increases AC load. Humidity is moderate, making standard ERV the right choice. That range is what sets the filter grade: we specify MERV-13 standard here.
Revita ERV + MERV-13. We recommend the Revita energy recovery ventilator for Hyderabad. 80–90% heat recovery means incoming 44°C outdoor air is pre-cooled to ~26–28°C before reaching the AC — dramatically reducing cooling load. Humidity is manageable without active dehumidification. MERV-13 handles road dust and urban PM2.5 adequately. The Revita
MERV-13 standard. Filter grade follows the local AQI rather than a national default — MERV-13 handles ordinary urban particulate, while HEPA-13 is warranted where AQI regularly passes 200 or where dust and industrial sources are present. In Hyderabad the range is 80–150.
Yes. InAir supplies and installs across India from its Hyderabad base, and Hyderabad in Telangana is covered end to end — free site survey, duct design, supply, commissioning with measured airflow readings, and handover. A typical residential installation is commissioned ten to twelve days after order. Send a floor plan to sales@in-air.in and an engineer returns a sized proposal.
Sizing starts from occupancy rather than floor area, because CO₂ is produced by people. ASHRAE 62.1 gives the airflow per person; that figure sets the unit, and the Hyderabad summer peak of 40–44°C plus humidity of 40–65% RH decides whether plain heat recovery is enough or whether active dehumidification is required.