Plasma⁺ system filters are revolutionizing the way we maintain air quality in our kitchens. Unlike traditional filters, they harness electrical ionization to eliminate pollutants, bacteria, and odors. Discover how Ciarra's advanced range hoods with Plasma⁺ technology bring cleaner, healthier air to your cooking environment.
What Are Plasma⁺ System Filters?
Plasma⁺ filters are advanced air purification technologies used in various appliances, including kitchen range hoods, to ensure a cleaner and healthier environment. Unlike traditional filtration systems that rely on physical media such as activated carbon or HEPA filters, Plasma⁺ technology harnesses the power of electrical ionization and advanced filtration mechanisms to break down and capture pollutants, bacteria, and odors in the air. Plasma⁺ filters provide a highly efficient and long-lasting solution for maintaining air quality by eliminating harmful substances and neutralizing cooking odors, grease, smoke, and soot particles.

How Do Plasma⁺ Filters Purify the Air?
The Plasma⁺ filter system works through a series of steps that are designed to efficiently capture and eliminate a broad range of airborne particles. Here’s how it works:
1. Air Inflow and Mechanical Pre-filtering
The first stage of filtration occurs as contaminated air enters the range hood or air purifier. The air that flows through the system initially passes through a mechanical pre-filter. This pre-filter is designed to capture the larger, coarse particles present in the air, such as dust, hair, and larger grease droplets.
The mechanical filter helps reduce the load on subsequent filters, making the process more efficient by removing these larger particles first.

2. Ionization Section: Electrically Charging Small Particles
Once the air has passed through the mechanical pre-filter, it enters the ionization section. This step is crucial in Plasma⁺ filtration. In this phase, the remaining smaller particles are electrically charged, meaning they are ionized. The ionization process causes the particles to become electrically charged, making them more easily attracted to surfaces or absorbed by the subsequent plasma filter.
This is a vital step, as the ionization section targets microscopic pollutants that traditional filters often miss. These particles include fine grease and soot particles, which are released during cooking, as well as harmful substances like bacteria and viruses.

3. Passing Through the Plasma Filter
After ionization, the air flows through the Plasma⁺ filter. Here, the ionized particles are captured and absorbed. Plasma filters use high-voltage electrical currents to generate a corona discharge that ionizes the air. This process creates sterilizable ions that actively attract and neutralize the charged particles. The filter is constructed to trap even the smallest particles, effectively purifying the air as it passes through.
This process is highly efficient in capturing not only particulate matter like grease and smoke but also gaseous pollutants such as volatile organic compounds (VOCs) and odors. The Plasma⁺ filter works by charging these particles and enabling them to adhere to the surface of the filter, where they are safely removed from the air.

4. Purified Air Released Back into the Room
Once the air has passed through the Plasma⁺ filter, the purified air exits the range hood or air purifier and returns to the room. This process ensures that the surrounding environment is free of harmful particles, unpleasant odors, and pollutants. The clean air can circulate freely, improving the overall indoor air quality, especially in cooking environments where grease, smoke, and odors can accumulate quickly.
This cycle of filtration helps reduce the health risks associated with indoor air pollution, such as respiratory issues, allergies, and the risk of infection due to airborne bacteria. It also significantly reduces kitchen odors, keeping the air fresh and free from the lingering smells of cooking.

How Ciarra Tests the Reliability of Its Plasma⁺ Filter System
At Ciarra, the Plasma⁺ filtration system is not only designed for high performance but also rigorously tested to ensure its effectiveness in removing harmful gases like ammonia (NH₃) and sulfur dioxide (SO₂). These tests are conducted in controlled environments, with precise measurements and monitoring, to ensure the system meets industry standards and delivers exceptional air purification.
Ammonia (NH₃) Removal Test
To test the Plasma⁺ system’s ability to remove ammonia, a sealed test chamber of 1 cubic meter was used. The chamber was filled with ammonia gas at a concentration of 5.0 parts per million (PPM), and the system's efficiency in eliminating ammonia was measured over time. The results were remarkable, demonstrating a 100% ammonia removal rate within 30 minutes, regardless of the different activated carbon molecular sieve configurations. Below is a summary of the test data:
| Test Time (Minutes) | Ammonia Natural Dissipation | Activated Carbon Molecular Sieve 1-7 (Results) |
|---|---|---|
| 0min | 5.0 | 5.0 |
| 5min | 4.82 | 1.37 - 1.61 |
| 10min | 4.62 | 0.33 - 0.61 |
| 15min | 4.45 | 0.19 - 0.42 |
| 20min | 4.32 | 0.12 - 0.28 |
| 25min | 4.17 | 0 - 0.21 |
| 30min | 4.04 | 0 (Full removal) |
Ammonia Removal Rate:
- Natural Dissipation: 31.0% (after 30 minutes)
- Plasma⁺ System: 100% removal within 30 minutes
These results indicate that the Plasma⁺ system is highly effective at purifying the air and eliminating ammonia, a common pollutant found in kitchens.

Sulfur Dioxide (SO₂) Removal Test
A similar test was conducted to evaluate the Plasma⁺ system's performance in removing sulfur dioxide (SO₂). A sealed chamber of 1 cubic meter was again filled with sulfur dioxide at an initial concentration of 5.0 PPM. The Plasma⁺ system demonstrated a high level of efficiency, removing sulfur dioxide in a short amount of time. Below is a summary of the test data for sulfur dioxide removal:
| Test Time (Minutes) | SO₂ Natural Dissipation | Activated Carbon Molecular Sieve 4-10 (Results) |
|---|---|---|
| 0min | 5.0 | 5.0 |
| 5min | 4.91 | 1.36 - 1.45 |
| 10min | 4.8 | 0.16 - 0.28 |
| 15min | 4.72 | 0 (Full removal in 11-14 mins) |
| 20min | 4.64 | 0 (Complete removal) |
| 25min | 4.52 | 0 (Complete removal) |
| 30min | 4.4 | 0 (Complete removal) |
Sulfur Dioxide Removal Rate:
- Plasma⁺ System: 100% removal within 30 minutes across all sieve configurations.
These results demonstrate that the Plasma⁺ system is highly effective at eliminating sulfur dioxide from the air, ensuring a healthier environment by removing harmful industrial pollutants.

Decay of Removal Capacity Over Multiple Tests
While the Plasma⁺ system shows impressive results in removing both ammonia and sulfur dioxide, it's also important to note that the system maintains high efficiency even after repeated testing. The data shows only a slight decline in effectiveness after multiple tests, which proves the durability and reliability of the system.
| Test Count | Sulfur Dioxide Removal Time (Minutes) | Ammonia Removal Time (Minutes) |
|---|---|---|
| 1 | 11.2 | 22.45 |
| 2 | 10.13 | 20.82 |
| 3 | 9.75 | 24.22 |
| 4 | 11.9 | 25.73 |
| 5 | 12.07 | 27.2 |
| 6 | 14.12 | 29.1 |
| 7 | 14.23 | 28.17 |
| 8 | 15.3 | 29.2 |
| 9 | 16.35 | 29.86 |
| 10 | 15.75 | 30.32 |
As shown, the removal times for both ammonia and sulfur dioxide have remained consistently fast and effective, even after multiple tests. The Plasma⁺ filter system's robust performance proves its long-lasting reliability.
Related: Cooker Hood with Plasma⁺ System
Through rigorous testing, Ciarra's Plasma⁺ filtration system has proven its ability to remove harmful pollutants such as ammonia and sulfur dioxide with high efficiency. The results from these tests, showing near-total elimination of these gases in under 30 minutes, demonstrate the system’s advanced purification capabilities. Whether you're looking to improve air quality in your kitchen or reduce the impact of harmful pollutants, Ciarra’s Plasma⁺ filter system offers a proven, reliable solution for cleaner, healthier air.
Shop the Ciarra Range Hood with Plasma⁺ System
If you're looking to enhance your kitchen's air quality and eliminate stubborn cooking odors, the Ciarra range hoods with Plasma⁺ filtration (commercial range hood ) are your ideal choice. Equipped with innovative Plasma⁺ technology, these range hoods are designed not only to extract grease, smoke, and odors but also to purify the air by eliminating harmful particles.
CIARRA Professional Series 36-inch 304 Stainless Steel Wall Mount Range Hood | CAS36313A-OW
This professional-grade range hood is the perfect combination of power, elegance, and intelligence. Its modern design and high-performance features make it a great addition to any kitchen, while its advanced capabilities ensure efficient air purification during cooking.

Key Features:
Max 950 CFM Suction Power
With a powerful 950 CFM motor, this range hood is capable of capturing grease, smoke, and fumes quickly, preventing odors from lingering in your kitchen.
4-Speed Motor & Touch Control with Boost Function
Choose from 4 speed levels for customizable air filtration, and the boost function ensures powerful ventilation when needed most.
Voice Control & Smart Life App Integration
Connect to Alexa, Google Home, or the Smart Life App for easy voice control and remote management of your range hood.
Gas Leakage Detection Sensors
A safety feature that detects gas leaks, alerting you immediately for extra peace of mind.
Dishwasher-Safe Baffle Filters
Easy to clean filters that are dishwasher-safe, saving you time and hassle. Plus, the filter cleaning reminder ensures you're always aware when it's time to clean the filters.
Dual Ventilation
This range hood offers both ducted and ductless operation. With the optional Plasma⁺ filter, you can purify the air indoors, removing harmful particles.
Compatible with Plasma⁺ System (Sold Separately)
Upgrade your kitchen ventilation with the Plasma⁺ filter to eliminate more pollutants and enhance air quality.

This range hood is designed to be as efficient as it is durable, with a high-quality 304 stainless steel construction that resists rust, heat, and corrosion. Perfect for medium to large kitchens, this range hood provides an excellent balance of performance and modern design.

Professional Series 36-inch Wall Mount Range Hood
CIARRA CAS36313A-OW
This range hood is designed to be as efficient as it is durable, with a high-quality 304 stainless steel construction that resists rust, heat, and corrosion.
2. CIARRA Professional Series 34 inch Built-In Range Hood | CAS34927A-OW
For those who prefer a built-in design, the CIARRA 34 inch built-in range hood offers similar powerful features, compact enough to fit seamlessly into your kitchen. This model boasts a robust 950 CFM motor and a sleek design that’s as functional as it is stylish.

Key Features:
950 CFM Power & 4-Speed Levels
The powerful motor ensures efficient ventilation, capturing grease and odors at all stages of cooking.
Smart Control with App & Voice Control
Use Alexa, Google Home, or the Smart Life App to control your range hood with just your voice or smartphone.
Gas Leakage Detection Sensors
Built-in sensors alert you immediately if there’s a gas leak, prioritizing safety.
Dishwasher-Safe Filters & Reminder Feature
Simplify maintenance with dishwasher-safe baffle filters and a reminder function to ensure they’re cleaned on time.
Dual Ventilation with Plasma⁺ Compatibility
Whether you need external venting or internal purification, this range hood offers both options. With the additional Plasma⁺ system, you can purify the air more effectively.
Plasma⁺ System Compatible (Sold Separately)
Improve air quality by adding the Plasma⁺ filtration system to remove particles from the air, keeping your kitchen environment healthier.
Made from high-quality stainless steel, this range hood is built to last, offering the perfect balance of performance, safety, and design. Its whisper-quiet operation makes it ideal for open-concept kitchens, while its smart capabilities give you total control over the ventilation process.

CIARRA Professional Series 34 inch Built-In Range Hood
CIARRA CAS34927A-OW
Made from high-quality stainless steel, this range hood is built to last, offering the perfect balance of performance, safety, and design.
3. CIARRA Professional Series 36 inch Under Cabinet Range Hood Insert | CAS36928A-OW
If you prefer an under-cabinet range hood, this model offers the same powerful filtration system but in a more streamlined design. With a maximum 950 CFM suction capacity, this under-cabinet insert fits perfectly into your existing cabinetry, providing effective ventilation with minimal space requirements.

Key Features:
950 CFM Suction Power & 4-Speed Motor
Quickly captures smoke, grease, and other cooking odors, preventing them from circulating through your kitchen.
Voice Control & App Integration
Voice control through Alexa or Google Home and the ability to manage your range hood remotely via the Smart Life app makes it incredibly user-friendly.
Gas Leakage Detection Sensors
The built-in gas detection system ensures your kitchen’s safety, alerting you if any dangerous gas leaks are detected.
Dishwasher-Safe Filters with Cleaning Reminder
Clean the filters easily in your dishwasher, and never forget to clean them thanks to the built-in cleaning reminder.
Dual Ventilation Options
Choose to either expel the air externally or purify it internally with the optional Plasma⁺ system.
Plasma⁺ System Compatible (Sold Separately)
Enhance your range hood’s air filtration capabilities with the Plasma⁺ filter, which purifies the air and eliminates harmful pollutants.
This model is a great choice for anyone looking to maximize kitchen space without compromising on performance or features. It combines top-tier filtration with smart features, making it a standout choice for modern kitchens.

36-inch Under-Cabinet Range Hood Insert
CIARRA CAS36928A-OW
This model is a great choice for anyone looking to maximize kitchen space without compromising on performance or features.
Why Choose Ciarra Range Hoods with Plasma⁺ System?
Ciarra range hoods with Plasma⁺ technology offer powerful performance and smart features to enhance your kitchen:
- Powerful Suction (Up to 950 CFM): Efficiently captures grease, smoke, and odors.
- Smart Features: Control via voice or Smart Life App for convenience.
- Gas Leakage Detection: Alerts you to potential safety issues.
- Easy Maintenance: Dishwasher-safe filters and cleaning reminders.
- Dual Ventilation: Choose between external venting or internal air purification with Plasma⁺.
- Plasma⁺ Filtration: Reduces harmful particles and improves air quality.
Upgrade your kitchen with Ciarra range hoods for cleaner air and a smarter cooking experience.
You might be interested in:
- Top Benefits of Using a 900 CFM Range Hood in Your Kitchen
- Choosing 304 Stainless Steel? Here's What You Need to Know
Conclusion
Ciarra's Plasma⁺ filter system not only enhances your kitchen's air quality but also offers powerful suction, smart features, and easy maintenance. Choose one of Ciarra's Plasma⁺-compatible range hoods for efficient air purification and a smarter, safer kitchen.
Explore CIARRA® Professional Range Hoods
Clearing the air so you can sear, simmer, and flambé is a must for any adventurous cook. That’s why CIARRA® professional range hoods are built to fit any kitchen space, offering five different types of high-performance hoods. Breathe new life into your kitchen with a professional range hood designed to meet your cooking needs and elevate your culinary experience.





