A window-mounted fresh-air system that brings filtered outdoor air into your room—without ducts, drilling, or permanent modifications.
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Have You Ever Felt the Air Change?
Fresh air shouldn’t come with trade-offs. Open the window, and outdoor heat, pollen, dust, and noise come inside.
Keep it closed, and the air becomes stale. For years, we’ve accepted this compromise.
What if you could enjoy fresh air—without the trade-offs?
Cozeware FreshFlow brings filtered outdoor air indoors—without opening your window.
Meet Cozeware FreshFlow
An innovative window-mounted fresh air system that continuously brings filtered outdoor air indoors—without opening windows—helping create a fresher, more comfortable indoor environment.
Cozeware FreshFlow continuously brings filtered outdoor air indoors, helping reduce stuffiness and CO₂ buildup while keeping your space feeling fresh and comfortable.
Unlike fans or air purifiers that only circulate or clean the air already inside, Cozeware FreshFlow actively renews your indoor environment by introducing fresh, filtered air from outside.
What Makes Cozeware FreshFlow Different?
Filtered fresh air for the whole family—day after day.
Traditional air solutions solve only part of the problem.Cozeware FreshFlow was created to offer another way:
How FreshFlow Makes It Possible?
Four integrated innovations work together to make filtered fresh air practical for everyday living.
At the heart of Cozeware FreshFlow are four innovations: Fresh-In™, WindowFit™, AirMatch™, and AirGuide™.
Together, they deliver a smarter way to bring fresh air indoors—with continuous air renewal, renter-friendly installation, optimized airflow, and effortless control in one integrated system.
Fresh-In™ Fresh Air Intake
Fresh Air Is More Than Clean Air
Cleaning the air you have is not the same as bringing in new air.
Air purifiers help capture indoor particles, but they only work with the air already inside your home.
Cozeware FreshFlow goes further—continuously introducing filtered outdoor air while helping reduce indoor stuffiness for a fresher, more comfortable living environment.
Fresh Air Beyond the Window
Fresh Air Shouldn’t Stop at the Window
Bringing fresh air indoors is only the beginning. Cozeware FreshFlow is designed to help distribute filtered outdoor air throughout your space, so fresh air goes beyond the area near your window.
With up to 47.1CFM / 80m³/h of filtered outdoor airflow, Cozeware FreshFlow refreshes rooms up to 345ft² / 32㎡ with a more comfortable and balanced indoor environment.
Why Does Your Room Feel Stuffy?
Even a clean room can feel uncomfortable when the air inside becomes stale.
As we spend hours indoors, CO₂ levels can build up and fresh air becomes limited—leaving your space feeling heavy and less refreshing.
Cozeware FreshFlow continuously introduces filtered outdoor air to help renew your indoor air and create a more comfortable living environment.
AirMatch™ Adaptive Filter System
Built for Changing Air. Designed for Long-Term Comfort.
Change the filter, not the whole system.
From seasonal allergens to dust and outdoor pollutants, the air around your home is always changing.
Cozeware FreshFlow features a replaceable filter system that adapts with your environment, making upkeep easier and helping you enjoy fresh air for years to come.
WindowFit™ No-Drill Installation
Fresh Air Without Renovation
Fresh air shouldn’t require permanent changes to your home.
With WindowFit™, Cozeware FreshFlow installs with a no-drill, removable mounting design—allowing you to enjoy continuous fresh air without drilling into walls or making permanent modifications to your home.
Built for flexible living, Cozeware FreshFlow can be removed, moved, and reinstalled whenever your needs change. Use it independently or pair it with compatible window AC units for a smarter, more adaptable air solution.
AirGuide™ Smart Air Management
Cozeware FreshFlow App: Comfort at Your Fingertips
With the Cozeware FreshFlow App, managing fresh air is simple and effortless. Adjust settings, choose your preferred mode, set schedules, and personalize your airflow to fit your daily routine—all through an intuitive interface designed for everyday comfort.
Smart Display, Simple Control
Sometimes, simplicity is the smartest choice.
With an intuitive display and responsive touch controls, Cozeware FreshFlow makes everyday adjustments easy—letting you check settings, change modes, and adjust airflow / manage settings with just a few taps.
Smart Insights, Wherever You Are
The Cozeware FreshFlow App gives you a clearer view of your indoor air, letting you monitor key air quality metrics in real time and see how they change throughout the day.
Balance Mode, Smarter Airflow
Automatically adjusts airflow based on real-time air quality to help maintain a more comfortable indoor environment.
Choose Your Cozeware FreshFlow
- Cozeware FreshFlow Core
The simplest way to bring filtered fresh air into a room. Designed for continuous ventilation with filtered outdoor air. - Cozeware FreshFlow Pro
Fresh air and indoor purification, in one window system. Enjoy filtered outdoor air plus recirculated indoor air cleaning for more complete air care.
One Window System. Two Ways to Improve Your Air.
Cozeware FreshFlow Pro features dual airflow paths that give you more flexibility. Bring in filtered outdoor air to refresh your space, or switch to indoor purification mode to clean the air already inside—depending on your room’s needs.
Fresh Air for Every Moment
Fits Your Home. Designed to Last.
Flexible Fit. Simple Installation.
Easy Maintenance. Built to Last.
Designed for everyday use, Cozeware FreshFlow’s replaceable filter provides up to 2,160 hours of filtration performance. Under typical usage of 8 hours per day, one filter can last up to 9 months, helping reduce frequent replacements and simplify long-term maintenance.
In high-humidity environments, such as coastal areas or humid seasons, we recommend replacing the filter every 3–6 months to help maintain optimal performance.
When it’s time for a refresh, filter replacement is quick and simple—just remove the old filter, insert a new one, and continue enjoying fresh, filtered air.
Test and Results
1.OPERATING NOISE TEST
Noise levels were measured at three fan speeds from distances of 0.5 m, 1 m, and 2 m, with an ambient noise level of 35.4 dBA.
THE RESULT
At Level 1, the operating noise virtually blends into the room’s natural background—even from just 0.5 meters away.
Results shown are representative test readings. Actual noise levels may vary depending on installation and room acoustics.
2.SMOKE CLEARANCE TEST
Particle-rich smoke was released inside a sealed 0.16 m³ test chamber to visually demonstrate the airflow and filtration process.
THE RESULT
Once powered on, the unit visibly cleared the dense smoke within 60 seconds. The darkened filter shows the airborne particles captured during the test.
The entire test was filmed in one continuous shot with no cuts and is shown only at 2× speed. This visual demonstration was conducted in a small test chamber and is not a standardized CADR or filtration-efficiency test. Actual performance may vary depending on room size, pollutant concentration, and operating conditions.
3.CO₂ VENTILATION TEST
The test was conducted in a 28 m² indoor space with a ceiling height of 2.6 m, simulating a typical bedroom environment with a total volume of approximately 72.8 m³.
Before the test, dry ice was used to raise the indoor CO₂ concentration above 2,000 ppm, creating a high-CO₂ test environment. Except for the Fresh Flow installation opening, all other air inlets and outlets were sealed, and no other ventilation equipment was operating.
Fresh Flow continuously supplied outdoor air while a separate air-quality monitor recorded the changes in CO₂ concentration.
THE RESULT
Under these test conditions, the measured CO₂ concentration fell from 2,021 ppm to 467 ppm in approximately 27 minutes and 27 seconds—a reduction of about 77%. The final reading was close to typical outdoor-air levels, indicating that the accumulated indoor CO₂ had been effectively diluted.
The test is presented as time-lapse footage and simulates approximately 30 minutes of bedroom ventilation. It is not a controlled laboratory test. Actual results may vary depending on room size, occupancy, airtightness, outdoor CO₂ levels, fan speed, and environmental conditions.
4.PM2.5 PURIFICATION TEST
(PRO MODEL — INDOOR PURIFICATION MODE)
Particulate matter was introduced into an indoor test environment, raising the PM2.5 concentration to 500 μg/m³. Fresh Flow Pro was then operated in Indoor Purification Mode while changes in PM2.5 concentration were recorded.
THE RESULT
Under these test conditions, the PM2.5 reading dropped from 500 μg/m³ to 34 μg/m³ in approximately 25 minutes and 22 seconds—a reduction of about 94%. The reading entered the device-indicated “Moderate” range, demonstrating a significant reduction in the high concentration of indoor airborne particles.
The test is shown in time-lapse and was not conducted as a controlled laboratory CADR or filtration-efficiency test. Values shown are instantaneous readings recorded during the test. Actual performance may vary depending on room size, initial pollutant concentration, room airtightness, filter condition, and environmental conditions.
5.INDOOR TEMPERATURE IMPACT TEST
To compare the impact of open-window ventilation with using Fresh Flow, the indoor air conditioner remained on throughout the test and was set to 61°F (16°C).
Control: Window open, Fresh Flow off.
Test: Window closed, Fresh Flow operating in Auto Mode.
Temperature and humidity monitors recorded conditions on the indoor and outdoor sides for approximately 30 minutes.
THE RESULT
After approximately 29 minutes and 47 seconds, the indoor-side temperature with the window open increased from about 79°F (26.1°C) to 82°F (27.8°C)—a rise of approximately 3°F (1.7°C).
With the window closed and Fresh Flow operating, the indoor-side temperature remained stable, changing only from about 79°F (26.1°C) to 78°F (25.6°C), while the outdoor-side temperature remained around 84–85°F (28.9–29.4°C).
Under these test conditions, Fresh Flow introduced the room temperature remained substantially more stable with FreshFlow operating and the window closed than during direct open-window ventilation.
The footage is presented in time-lapse and split-screen format, with the two tests conducted at different times. This is a real-world temperature comparison demonstration, not a controlled laboratory test of insulation, cooling performance, or energy efficiency. Actual results may vary depending on indoor–outdoor temperature differences, air-conditioner performance, room size, sunlight exposure, installation conditions, fan speed, and environmental factors.
