Lucknow · Uttar Pradesh

Fresh Air Ventilation in Lucknow

Composite — hot humid summers, very cold foggy winters, very high AQI

InAir Fresh Air Ventilation in Lucknow
Summer temp
40–45°C
Humidity
50–85% RH (monsoon)
AQI range
200–400
Filter grade
HEPA-13 (mandatory — AQI profile similar to Delhi)

What makes ventilation difficult in Lucknow?

Lucknow shares Delhi's winter pollution crisis (AQI 300–400) but also has humid summers unlike Delhi. Winter fog traps pollutants for weeks. Wide temperature range from 45°C summer to 5°C winter demands a versatile system.

Which machine is right for Lucknow?

RHP + HEPA-13 (Premium) · Revita ERV + HEPA-13 (Standard)

HEPA-13 is mandatory for Lucknow — not optional. AQI regularly reaches 300–400 in winter. Premium: RHP handles the full range (45°C summer active cooling, 5°C winter heat recovery, monsoon dehumidification) with year-round HEPA-13 filtration. Standard: Revita ERV + HEPA-13 filter box is the cost-effective minimum viable solution. Both are essential — unfiltered fresh air in Lucknow winter is dangerous.

For Lucknow we specify Revita ERV or RHP Heat Pump as the default, with HEPA-13 (mandatory — AQI profile similar to Delhi) filtration. Models: RHP INA-RHP Series (premium), Revita INA-MFQR + HEPA-13 filter box (standard). Model-by-model airflow, static pressure and power figures are on the spec sheets.

Typically installed in: All homes and buildings — HEPA-13 is non-negotiable.
Also worth considering: Revita ERV + HEPA-13 is cost-effective for residential; RHP for large commercial, schools, and healthcare

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. Lucknow then adds two local constraints: a summer peak of 40–45°C, which decides how much heat recovery is worth paying for, and humidity of 50–85% RH (monsoon), which decides whether plain recovery is enough or whether active dehumidification is needed.

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Further reading

Lucknow questions

What do people in Lucknow ask?

Lucknow sees an AQI range of roughly 200–400 through the year. Lucknow shares Delhi's winter pollution crisis (AQI 300–400) but also has humid summers unlike Delhi. Winter fog traps pollutants for weeks. Wide temperature range from 45°C summer to 5°C winter demands a versatile system. That range is what sets the filter grade: we specify HEPA-13 (mandatory — AQI profile similar to Delhi) here.
RHP + HEPA-13 (Premium) · Revita ERV + HEPA-13 (Standard). We recommend either the Revita ERV or the RHP heat-pump unit for Lucknow. HEPA-13 is mandatory for Lucknow — not optional. AQI regularly reaches 300–400 in winter. Premium: RHP handles the full range (45°C summer active cooling, 5°C winter heat recovery, monsoon dehumidification) with year-round HEPA-13 filtration. Standard: Revita ERV + HEPA-13 filter box is the cost-effective minimum viable solution. Both are essential — unfiltered fresh.
HEPA-13 (mandatory — AQI profile similar to Delhi). 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 Lucknow the range is 200–400.
Yes. InAir supplies and installs across India from its Hyderabad base, and Lucknow in Uttar Pradesh 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 Lucknow summer peak of 40–45°C plus humidity of 50–85% RH (monsoon) decides whether plain heat recovery is enough or whether active dehumidification is required.