What is an Air Washer?

An air washer is a highly efficient evaporative cooling system designed to condition air in large industrial and commercial spaces. Ideal for factories, commercial kitchens, basements, etc., air washers offer a cost-effective and energy-efficient alternative to traditional cooling methods like chillers and VRF systems.

How Air Washers Work: The Science of Evaporative Cooling

Air washers utilize the principle of evaporative (adiabatic) cooling to lower air temperatures.
Here's a detailed breakdown:

1. Air Intake & Multi-Stage Filtration :

Ambient hot air is drawn into the unit.
This air is passed through a multi-stage filtration system, including pre-filters and high-efficiency synthetic filters (90% efficiency down to 10 microns), removing dust, pollen, and airborne contaminants. This ensures clean, conditioned air delivery.

2. Evaporative Cooling Process :

Direct Evaporative Cooling :

Filtered hot air is forced through cellulose evaporation pads saturated with water or a high-pressure water spray.
The water absorbs heat from the air, evaporating and significantly lowering the air temperature.
The cooled, humidified air is then circulated.

Indirect Evaporative Cooling :

Hot air passes through a highly efficient heat exchanger.
A separate stream of pre-cooled air (often through direct evaporation) flows on the opposite side of the exchanger.
Heat is transferred from the hot air to the pre-cooled air without mixing, resulting in cooler, dehumidified air.

3. Air Distribution :

A powerful, energy-efficient fan (SISW/DIDW backward curved or EC fan) forces the cooled air through ductwork, distributing it evenly throughout the space.
CFM (Cubic Feet per Minute) ranges from 1,000 to 100,000, with static pressure (mm WG) tailored to specific application requirements.

Single-Stage vs. Two-Stage Air Washers:

Single-Stage : Uses either direct or indirect evaporative cooling.
Two-Stage : Combines indirect and direct evaporative cooling for maximum cooling efficiency, especially in hot, dry climates.

Efficient | Durable

Air Washer Manufacturer in Delhi & India

Adhunik Powertech is a leading manufacturer of high-quality air washers, proudly serving Delhi NCR, including key industrial hubs like Gurugram, Faridabad, Noida, Greater Noida, and Ghaziabad. Our expertise extends across India, providing reliable air washer units to meet diverse industrial and commercial needs in locations such as Sonipat, Panipat, Rohtak, Rewari, Palwal, Bhiwadi, Meerut, Neemrana, Tapukara, Bawal, Manesar, Dharuhera, Muzaffarnagar, Jaipur, and Chandigarh. Contact Adhunik Powertech for your air washer solutions, no matter your location in Delhi NCR or across India.

Key Features of Adhunik Powertech Air Washers :

Full SS304 Construction : Unmatched corrosion resistance and durability for long-lasting performance.
Robust Build : Outer skin: Galvanized Iron (GI) or Pre-Coated GI (customizable); Inner skin: GI (customizable); Frame: Extruded aluminium profile.
High-Efficiency Filtration : Multi-stage filtration with synthetic filters (90% efficiency down to 10 microns).
Optimal Cooling : Cellulose evaporation pads and PVC eliminators for efficient heat transfer.
Powerful Airflow : SISW/DIDW backward curved or EC fans for efficient air circulation (1,000 – 100,000 CFM).
Reliable Water Management : SS304 sump and high-performance water pumps.
Customizable Solutions : Tailored designs to meet specific application requirements.
Easy Installation & Maintenance : Designed for straightforward setup and long-term reliability.

Technical Specifications :

CFM Range: 1,000 – 100,000
Static Pressure: Customizable (mm WG)
Filter Efficiency: 90% down to 10 microns
Sump Material: SS304
Outer Skin Material: Galvanized Iron (GI) or Pre-Coated GI (customizable thickness)
Inner Skin Material: Galvanized Iron (GI) (customizable thickness)
Frame Material: Extruded Aluminium Profile
Fan Type: SISW/DIDW Backward Curved or EC Fan
Evaporation Pad Type: Cellulose

Types of Air Washer

Single Stage
(Direct Evaporative Cooling System)

SINGLE STAGE Air Washer
(DIRECT EVAPORATIVE COOLING SYSTEM)

(Working Principle)

Air washer

Boost comfort and productivity with our air washers that deliver clean, cool air all year round.

Direct evaporative cooling, also known as direct adiabatic cooling or wet bulb cooling, is called direct as there is direct contact between the water and the air stream. During the direct evaporative cooling process, water is evaporated directly into the air stream that needs to be cooled down. This type of evaporative cooling is the most used form worldwide, especially in dry regions.
With direct evaporative cooling, outside air is blown through a water-saturated medium (usually cellulose -Honey comb cooling pads) and cooled by evaporation. The cooled air is circulated by a blower.
Direct evaporative cooling adds moisture to the air stream until the air stream is close to saturation. The dry bulb temperature* is reduced, while the wet bulb temperature stays the same.

Type for Air Washer

Double stage
(Indirect Evaporative Cooling System)

Double Stage Air Washer
(IN-DIRECT EVAPORATIVE COOLING SYSTEM)

(Working Principle)

The IDECooling Advantage

100% fresh, clean, cool air

Maintains excellent indoor air quality
Healthy conditions for the human body

Up to 80% less power consumption
compared to air-conditioners

Low operating cost
Low carbon footprint

High level of filtration

Supplies clean air
Keeps indoor areas clean

Positive pressure system

Prevents ingress of dust
Drives out harmful contaminants

Non refrigerant and compressor
based technology

No harmful gases used
Sustainable cooling solution

Robust and compact design

The body of the machine doesn’t get damaged when exposed to harsh weather conditions
Long product life

Up to 5°C more cooling compared to direct evaporative air-coolers

Easily maintains temperatures below 30°C
Ideal temperature conditions for both man and machine

Up to 60% less moisture addition in air compared to direct evaporative air-coolers

Supplies drier air compared to direct evaporative air-coolers
Can be used even in the monsoon season

3 modes of operation – IDEC, IEC and ventilation

Modes can be selected based on ambient weather conditions
All weather cooling solution

Blow through design

Blower doesn’t come in contact with moist air
Zero chance of blower rusting

Contact Us Today :

For reliable and high-quality air washer solutions in Delhi and across India, contact Adhunik Powertech today. Also, if you have any questions about air washers, installation, maintenance, and repair, please reach-out to our toll-free number, and we'll be happy to discuss your needs and provide a customized solution.

Contact sales team

FAQs

How does an air washer work?

An air washer, also known as an evaporative air cooler, works by using the principle of evaporative cooling to lower the temperature of the air. In this process, hot outdoor air is drawn into the unit and passed through water-saturated pads. As the air passes through these pads, it loses heat and evaporates the water, resulting in cooler, more comfortable air. The cooled air is then circulated throughout the building by a blower and duct system.

What are the benefits of using an air washer?

Air washers offer several benefits, including cooling large industrial spaces, improving air quality by filtering out dust, pollen, and allergens, and maintaining humidity levels, creating a more comfortable and breathable environment, especially in dry climates.

What are the different types of air washers available?

Air washers can be broadly classified into two types:

Direct Air Washers
Direct air washers, also known as single-pass air washers, operate using a one-pass system. In this process:
- Air is forced through a series of wet pads where it is cleaned with water.
- The resulting air is purified, cooled, and humidified, making it suitable for maintaining a comfortable indoor environment.
Indirect Air Washers
Indirect air washers use a two-step process for improved air quality and control:
- First, air is passed through a sensible heat exchanger to cool it.
- Then, it moves through wet pads, removing pollutants and further purifying the air.
- If required, the air is heated before being released back into the room.

What Are the Differences Between an Air Washer and an AHU?

An Air Washer and an Air Handling Unit (AHU) are two different systems used for indoor air treatment. An Air Washer primarily cools, humidifies, and purifies air by adding moisture and filtering impurities, often used in dry environments like in industrial areas.

An AHU, on the other hand, is a complex system that conditions and circulates air throughout a building, controlling temperature, humidity, and air quality.

While an Air Washer focuses on specific air treatments, an AHU offers a comprehensive solution for air conditioning and circulation in larger buildings.

How do air washer systems enhance efficiency in industrial processes?

Key factors to consider when choosing an air washer include: