AIR FILTRATION
Dirty air passes the pleated media: dust collects on the upstream face and only clean air moves on.

HVAC air solutions: manufacturing & supply
Filtration, balance, control, distribution: every movement of air through a building, built with obsessive precision in Surat. From FCU pre-filters to H14 HEPA: made to drawing, shipped pan-India.
The ABCD of Air
What happens between the duct and the diffuser: filtered, balanced, controlled, distributed — four systems, one airstream.
Dirty air passes the pleated media: dust collects on the upstream face and only clean air moves on.
Two branches, one plenum: balancing dampers bring over- and under-supplied zones to design flow.
Blade, linkage, actuator: drag the control and the duct answers, from sealed shut to full flow.
One supply feeds the manifold: branches carry air to a diffuser serving every zone.
Straight answers
Hayan HVAC Engineering (brand: Hayan HVACR) manufactures and supplies from Surat, Gujarat. The main product line is Air Filtration Products (AHU pre-filters to H13/H14 HEPA, EPA and activated carbon: 33 products), alongside Air Distribution Products (grilles, diffusers, jet nozzles, disk valves), Air Control Products (volume, fire, smoke and collar dampers) and Other HVAC Air Products (fresh air and gravity louvers, risers, plenums, flexible ducts). Every product is made to drawing and shipped pan-India.
Seventy-three products across four categories. Air Filtration Products (33): nylon mesh and panel pre-filters, Microvee fine, pocket bag, EPA, HEPA H13/H14, gel-seal HEPA, carbon, combination and laminar flow products. Air Distribution (24): deflection, linear, swirl and decorative grilles, ceiling, slot, swirl and jet nozzle diffusers, disk valves. Air Control (9): volume, aerofoil and round dampers, pressure relief, non-return, collar, fire and fire-smoke dampers. Other HVAC Air Products (7): fresh air, Z-blade, door transfer and gravity louvers, return air risers, GI plenum boxes and flexible ducts.
The works are in Surat, Gujarat, India. Phone and WhatsApp: +91 81559 88788 or +91 81560 77177. Email: [email protected]. Hours: Monday to Saturday, 10:00 AM to 7:00 PM IST. Products are quoted from your drawings and shipped pan-India.
Yes. Every product is made to drawing: frames are made to your wall or ceiling opening, in standard and custom sizes. Finishes include any RAL powder-coat shade plus anodized and brushed aluminium, with stainless steel available for corrosive or hygiene-critical applications.
Both. Hayan manufactures its own catalogue (filters, grilles, diffusers and dampers) in its Surat plant, made to drawing, and also supplies HVACR equipment and consumables (including filter media and replacement filters) from partner brands. One vendor for both custom fabrication and day-to-day supplies, shipped pan-India.
In-house manufacturing keeps tolerances tight: extrusion, assembly, hand-set blades and finishing all happen under one roof in Surat. Every catalogue product is made to drawing, dimensions are verified against your site, and technical data accompanies each quote.

Capturing airborne particles, dust and contaminants to protect indoor air quality, and everything downstream of the filter bank.
33 products →
Balanced delivery, diffusion and exhaust of conditioned air into the spaces people work in.
24 products →
Regulating, balancing, isolating and relieving air volume and pressure across the duct network.
9 products →
The fabricated pieces that complete a system: fresh air and gravity louvers, transfer grilles, return air risers, plenum boxes and flexible ducts.
7 products →Made-to-drawing fabrication is our default mode, not a premium service.
The house of brands
Every filtration and air-vent family we build carries its own name, tuned to its own job: from coarse AHU pre-filtration to terminal HEPA. Spec the brand, or spec the job; either way it ships from the same Surat plant. Explore the house of brands →
HVAC FCU Nylon Mesh Pre Air Filters
HVAC FCU/AHU Pre, Metal & Carbon Air Filters
HVAC AHU Microvee Fine, Bag & HEPA Filters
AirVent HVAC Air Distribution Products
Villas and towers that stay quiet at twenty-four degrees, with grilles you stop noticing because they work.
Offices, hospitals, hotels and malls. High occupancy, tight acoustics, zero margin for ugly air.
Clean rooms, pharma, process air and factories, where airflow is a production input, not a comfort.
Tender-grade documentation and consistent, inspectable quality, project after project.
Consultants, contractors, engineers and facility teams: the people who specify, install and run moving air.
“Every grille schedule is fabricated to the drawings you send: dimensions verified against the opening before a single sheet is cut.”
“Production planning treats your commissioning date as a product feature: HVAC arrives last on a site and is needed first at handover.”
“Throw distances, pressure drops and noise levels are tested on the bench, not assumed on paper. If a number matters, we measure it.”

Every filter, grille, damper and diffuser is cut, formed, welded and finished in our own plant in Surat. Each order is fabricated to your drawings, coated to your site’s atmosphere, and flow-checked before it ships, and what we don’t build in-house, we supply from trusted brands, to the same standard.
From site measurement to delivery, our crews have shipped and commissioned air filtration and HVAC products across the country.
Drawings, BOQs, tender documents or a plain question. A person answers.