Questions

The things people ask us first.

If what you need is not here, tell us about the space and we will come back to you.

Frequently asked questions

What is a fabric air duct, and how is it different from sheet metal?

A TurboaSOX duct is a technical fabric tube whose surface and orifices are calculated to release air the way the room needs it. Conventional metal ducting throws cold air from a few spaced grilles, so one corner freezes while another stays warm. A fabric duct spreads conditioned air gently along its whole length instead.

Is the fabric fire-retardant? What is it certified to?

The fabric is inherently fire-retardant as standard, certified to NFPA 701, EN-13501-1, BS-476 and ASTM E-84. Anti-microbial and anti-static grades are available where the process calls for them.

Can the ducting be cleaned?

Yes. The duct unzips, comes down, washes and goes back up. There are no internal crevices to hold condensation, grease or dust, and no false ceiling is required, so there is nothing hidden to clean around.

What shapes do you make?

Five profiles: round, our recommended profile, with the least static loss; segment, where a flat face suits the ceiling line; a ceiling diffuser that replaces a metal grille flush to the ceiling; semi-circle for tight height; and 360 degree for full-circle dispersion over a large zone. Elbows, T, Y, U and Plus joints, reducers and volume-control devices are all made in fabric too.

Do you design for our specific space, or is it off the shelf?

Every run is custom designed for one room. We read the space first, the heat load, the layout and height, and the process the air has to serve, then model the airflow velocities and patterns in computational fluid dynamics before anything is cut, and choose the fabric grade for the application. Nothing is templated.

How quickly can you install?

It depends on the space, but the ducting is light and fast to fit. For COV-AID@BLR, a 150-bed oxygenated care centre at Kempegowda International Airport, we designed and executed the ventilation in two lots with the ductwork up and running on the fifth day.

Which industries do you work in?

Pharmaceutical, food and beverage, textile and spinning mills, automotive, electronics and battery, warehousing and logistics, agro and dairy, chemical, hospitals and clinics, malls, showrooms and retail, offices and IT, and auditoriums, sports and transport hubs.

Do you install and maintain it yourselves?

Yes. The fabric is cut on our own laser machines and stitched and reinforced in our facility, then installed by our team with a light aluminium suspension and clear drawings. We supervise on site, and we maintain and refit the duct over its life.

What holds the duct in shape when the air is off?

SOXProp aluminium retention rings, in three levels: wide intervals where there is no height restriction, closer intervals to hold full shape with no airflow at all, and a full inner-ring system for return-air ducting at negative pressure. The rings stay out of the airstream and form no crevice for dust.

Who are you, and how long have you been doing this?

TurboaSOX is India's first fabric air dispersion system, made for fifteen years by SunGreen Ventilation Systems, a Chennai HVAC firm with over three decades of experience. We design, make, install and service every duct in-house.

Still deciding?

Send us the room and what it does. We will come back with the right grade, shape and airflow for it, and a comparable installation.

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