If you are managing or designing the HVAC system for an industrial facility, then understanding CFM is not just helpful – it is necessary. In this guide, we will explain what the CFM (cubic feet per m
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by Priyanka Gupta
When we think about industrial infrastructure, we often think about big machines, complex assembly lines, and large warehouses. But there is a unsung hero working behind the scenes—HVAC systems. These
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by Priyanka Gupta
Evaporative Cooling Systems have become a popular and energy-efficient alternative to traditional air conditioning. Despite their growing adoption, several myths still surround these Cooling systems,
These days, even basic home appliances like fans have become more modern and advanced. One such example is the bladeless fan—a new type of fan that looks stylish, makes less noise, and works efficiently. But what is a bladeless fan, and how does it blow air without any visible blades? Let’s find out.
What Is a Bladeless Fan?
A bladeless fan is a type of fan that blows air without any visible spinning blades. Instead of having blades on the outside like regular fans, it hides small blades inside its base. These hidden blades pull in air and push it up through a ring or oval-shaped loop at the top, creating a smooth and steady breeze. It looks modern, is safer to use around kids, and is easier to clean.
Are bladeless fans without fan blades?
No, bladeless fans do have fan blades, but they are hidden inside the base of the fan. The blades inside the base pull in air and push it up into the loop at the top. From there, the air is pushed out through small holes around the edge of the loop, creating a smooth breeze. So, while you can’t see the blades, they are still there doing the work!
How Does a Bladeless Fan Work?
The magic of a bladeless fan lies in clever engineering and the physics of air movement. Here’s a simple step-by-step explanation of how it works:
- Air is Pulled In: Inside the bottom of the fan, a small motor spins some hidden blades. These blades suck in air from the room.
- Air is Pushed Up: The fan then pushes this air through a small tube, sending it up to the round loop (the big ring at the top).
- Air Comes Out the Loop: The air is forced out through small slits around the edge of the loop, creating a smooth, steady breeze.
- More Air is Pulled In: The air that comes out of the loop pulls in more air from around it (like a vacuum), making the breeze even stronger. This is what we call the Coandă Effect.
So, even though the fan doesn’t have blades that you can see, it still moves a lot of air to keep you cool!
Top 10 Benefits of Bladeless Fans
1. Thermal Comfort & Targeted Cooling: Ever noticed how some corners of your room stay warmer than others? Bladeless fans are perfect for fixing that. They help cool down those hot spots — like near glass windows or stuffy corners — by spreading air evenly throughout the space. The result? A perfectly comfortable temperature everywhere you sit.
2. Smooth & Consistent Airflow: Traditional fans can feel choppy and uneven, but bladeless fans deliver a continuous, gentle stream of air. The flow feels more natural and relaxing — no harsh gusts, just smooth, refreshing comfort.
3. Energy Efficient: Pairing a bladeless fan with your air conditioner is a smart energy move. You can actually save up to 12% on electricity because the fan allows you to raise your AC temperature by about 2°C — without feeling any warmer. You stay cool, and your bills stay low.
4. Safe & Easy to Clean: No blades, no worries! Bladeless fans are safer for homes with kids or pets. Plus, they’re super easy to maintain — just give them a quick wipe and they’re good to go.
5. Stylish & Space-Saving Design: Sleek, modern, and minimal — these fans aren’t just functional, they’re stylish too. Their compact design fits effortlessly into any room, from cozy bedrooms to contemporary offices.
6. Air Purification (in Hybrid Models): Some models, like the Greencon Tripure or the Bladeless Fan + Air Purifier, come equipped with HEPA or UV filters. That means they don’t just circulate air — they clean it, removing dust, allergens, and pollutants for a healthier indoor environment.
7. All-Season Use: Think they’re just for summer? Not at all. Bladeless fans work year-round by keeping air moving gently even during cooler months, helping maintain a fresh and balanced indoor climate.
Where Are Bladeless Fans Used?
1. Homes and Apartments: Especially in rooms where children play or sleep.
2. Office Spaces: For a quieter and more elegant cooling solution.
3. Healthcare Environments: Where cleanliness and safety are top priorities.
4. Smart Homes: Many bladeless fans include app control, voice commands, and programmable settings.
Types of Bladeless Fans
Bladeless fans come in different types based on where and how you want to use them. At Degree Day Pvt Ltd, we offer a variety of bladeless fans to suit your needs:
1. Greencon Bladeless Cassette Ceiling Fan: This fan is installed in the ceiling like a cassette AC. It’s perfect for modern homes and offices where you want strong airflow without visible blades complementing the AC. Using this fan along with an AC allows you to increase your AC temperature by 1or 2 degrees and with every 1 degree temperature rise, you save 6% electricity. So using this fan with AC helps you save up to 12% electricity.
2. Smart Bladeless Foldable Desk/Wall Fan: A compact and foldable fan that can be placed on a desk or mounted on a wall. It’s ideal for personal use and comes with smart features like remote control and adjustable angles. It’s ideal for places like home temples and the kitchen, where working in summer is difficult. The direction of this fan can be adjusted to face away from the burner but still provide comfort to the person cooking food.
3. Greencon Fan & Air Purifier – Tripure: A 2-in-1 bladeless fan that also works as an air purifier. Its unique tripod design makes it stylish and perfect for clean, cool air in homes or workspaces. This statement piece not only cools the air around you but also considerably improves your IAQ (Indoor Air Quality).
Bladeless fans are a perfect blend of form and function. While they may come at a higher price, their benefits—especially in terms of safety, design, and efficiency—make them a worthwhile investment for many households and workplaces.
Whether you are a design enthusiast, a parent seeking a safer option, or simply someone looking for a quieter fan, the bladeless fan might just be the upgrade you didn’t know you needed.
Degree Day is Complete HVAC Solution Company: We Offer HVAC Design Services | HVAC Project Execution Services | Turnkey Solutions | Our Products are – Evaporative Air Coolers (For Residential, Commercial and Industrial Use), Bladeless Fans (Three Varients), Pre-Fab Ducts (Spiral Ducts, Oval and Rectangular Ducts), Air Handling Units, Exhaust Fans, Mist Cooling System | We have been serving clients across India for 25 years. Degree Day is an ISO-certified HVAC company known for quality and reliability.
by Priyanka Gupta
As temperatures rise, finding the right cooling system becomes essential—whether you are managing a large industrial facility or simply trying to keep your home comfortable. Two popular solutions dominate the market: evaporative cooling and air conditioning (AC). While both are designed to beat the heat, they work very differently and suit different environments.
So how do you choose the right system for your needs? Let’s explore how each one works, compare their benefits, and help you make an informed decision.
What Is Evaporative Cooling?
Evaporative cooling uses the natural process of water evaporation to cool the air. It draws warm outside air through water-saturated pads. The water absorbs the heat and evaporates as the air moves through, bringing cold, humid air into the room. Evaporative air coolers consume 80-85% less electricity than any air conditioning.
Want to explore high-performance evaporative coolers for your facility or home? Check out our evaporative cooling solutions designed for both industrial and residential use.
Key Features:
- Best suited for dry, hot climates
- Low energy consumption
- Provides continuous fresh air flow
- Ideal for large open areas like warehouses, workshops, and rooftops
In industrial settings, evaporative coolers (also known as swamp coolers) are especially useful in spaces with large volumes and natural ventilation. In residential use, they are common in areas with low humidity where traditional ACs may be overkill or expensive to run.
What Is Air Conditioning (Refrigerated Cooling)?
Air conditioning systems use a refrigeration cycle. It absorbs and expels heat from interior air by circulating a chemical refrigerant, and then the system cools and dehumidifies the air before circulating it again.
Key Features:
- Works in all climate types, especially humid regions
- Precise temperature and humidity control
- Sealed, closed-loop operation
- Common in homes, offices, hospitals, and commercial setups
For residential users, AC systems offer comfort with consistent cooling, while in industrial sectors, ducted and central AC systems are used for controlled environments such as clean rooms, laboratories, and IT/server rooms.
Evaporative Cooling vs. Air Conditioning
1. Cooling Efficiency & Performance
- Evaporative Cooling: Best in hot, dry areas. Less effective in humid conditions.
- Air Conditioning: Performs well in all climates, including coastal or tropical zones.
2. Energy Consumption & Operating Costs
- Evaporative Cooling: Consumes less electricity than AC; great for reducing operating expenses in large spaces..
- Air Conditioning: Higher energy usage; electricity bills can rise significantly with continuous use.
3. Environmental Impact
- Evaporative Cooling: Eco-friendly, no refrigerants used. Requires water.
- Air Conditioning: Uses refrigerants that may have a carbon footprint; high power demand can strain the grid.
4. Installation & Maintenance
- Evaporative Cooling: Simple setup; lower installation cost. Needs regular water and pad checks.
- Air Conditioning: More complex and expensive installation. Requires periodic servicing of refrigerant lines and filters.
5. Air Quality & Health
- Evaporative Cooling: Introduces fresh air constantly; helps remove stale air and odors.
- Air Conditioning: Recirculates indoor air—great for filtration, but can dry out the air and trap indoor pollutants if not maintained.
Pros and Cons at a Glance
Which One Is Right for You?
Choosing the right system is not just about the unit—it is about how well it’s designed for your space. Our team provides custom HVAC design services to ensure optimal performance and energy efficiency tailored to your environment.
The right cooling solution depends on several key factors:
For Industrial Spaces:
- If you operate in a dry, hot region (e.g., central or western India), evaporative cooling offers a cost-effective, low-maintenance solution, especially for factories, warehouses, and workshops.
- For controlled environments like laboratories, pharmaceuticals, or tech spaces, where humidity must be controlled, air conditioning is the better fit.
For Residential Homes:
- In dry climates, evaporative coolers can provide effective relief at a fraction of the cost.
- In humid or coastal areas, or when you need precise temperature control (e.g., for babies, elderly), air conditioning ensures comfort and reliability.
Both evaporative cooling and air conditioning have unique advantages. Your decision should be guided by your climate, budget, space requirements, and energy efficiency goals.
At Degree Day Pvt. Ltd., we offer expert consultation and tailor-made HVAC solutions for both industrial and residential users. Whether you are building a new facility or upgrading your home, we help you choose the system that’s just right for your needs.
Still unsure? Contact us today to schedule a site visit or consultation with our HVAC experts.
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