Kitchen air filtration and grease removal systems

Self-cleaning grease extraction and air purification for restaurants and commercial kitchens.

No filter changes, no duct cleaning, no waste.

Kitchen air filtration and grease removal systems

Self-cleaning grease extraction and air purification for restaurants and commercial kitchens.

No filter changes, no duct cleaning, no waste.

Kitchen air filtration and grease removal systems

Self-cleaning grease extraction and air purification for restaurants and commercial kitchens.

No filter changes, no duct cleaning, no waste.

Cleaner air than traditional ventilation systems. Available today. 

"After four months, the chimney sweep said he'd never seen cleaner ducts. Our filters look unused and didn't need any replacement"

"After four months, the chimney sweep said he'd never seen cleaner ducts. Our filters look unused and didn't need any replacement"

Magnus, franchiser

McDonald's Gotland

Magnus, franchiser

McDonald's Gotland

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Cleaner air than commonly used air filters today. 

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Cleaner air than commonly used air filters today. 

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Cleaner air than commonly used air filters today. 

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More sustainable. No filter waste. No disposal costs.

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More sustainable. No filter waste. No disposal costs.

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More sustainable. No filter waste. No disposal costs.

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Lower running costs through self-cleaning and no maintenance.

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Lower running costs through self-cleaning and no maintenance.

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Lower running costs through self-cleaning and no maintenance.

Grease-free extraction
with CLER Pro

CLER Pro removes particles without traditional filters. Our self-cleaning system delivers clean air down to PM2.5 and smaller, with no maintenance, no performance drops, and no filter waste.

Install once.

Run Continuously.

No filter changes.

Install it Then forget it

CLER Pro fits into existing ventilation systems. Installation takes less than a day. After that, it handles all particle types: wet, dry, grease, dust, PM2.5 and smaller. Without you having to do anything. 

No clogged filters. No duct cleaning. Just clean air, continuously. 

Air purification for commercial kitchens and restaurants

Our system is maintenance-free, scalable and energy efficient. It's built to handle the demanding conditions of commercial kitchens, from quick service restaurants to full-service dining and institutional food service.

Grease extraction at the kitchen hood

CLER Pro captures grease and oil at the kitchen hood, preventing it from entering the ventilation system. This protects ducts, exhaust fans, and filters from buildup in Quick Services Restaurants.

Restaurant kitchen maintenance reduced by up to 90%

Restaurants that typically change grease filters 3 to 4 times per year and schedule duct cleaning 2 to 3 times per year only need service once every 3 years with CLER Pro.

Integrates into existing kitchen exhaust systems

Our solution works with existing kitchen ventilation setups, improving performance without requiring structural changes to your building or equipment.

Why CLER works

No filters to change 

No ducts to clean

No interruptions

Cleaner air, continuously

Traditional filters vs CLER Pro

Traditional filters vs CLER Pro

Traditional filters vs CLER Pro

Today's standard kitchen exhaust systems

Today's standard kitchen exhaust systems

Traditional grease filters and bag filters are supposed to trap oil and particles, but most grease slips through.

The result: constant filter replacements, clogged ventilation ducts, and ongoing maintenance costs.

CLER Pro's solution

CLER Pro removes grease before it enters the ventilation system, keeping ducts clean and air quality high. The system works so efficiently that warm exhaust air can be reused.

Less waste. Lower costs. Cleaner air.

Patented technology Continuous clean air

CLER Pro has three core components that work together.

High-speed rotation creates centrifugal force. Our lamella design separates particles by weight. And the self-cleaning system rinses everything away automatically.

No filters. No consumables.

5000G Centrifugal Force

Our Perpetual Filtration Technology (PFT) spins air at very high speeds, creating forces up to 5,000 g. This separates particles by weight and catches tiny particles down to PM0.5 without using filters.

5000G Centrifugal Force

Our Perpetual Filtration Technology (PFT) spins air at very high speeds, creating forces up to 5,000 g. This separates particles by weight and catches tiny particles down to PM0.5 without using filters.

5000G Centrifugal Force

Our Perpetual Filtration Technology (PFT) spins air at very high speeds, creating forces up to 5,000 g. This separates particles by weight and catches tiny particles down to PM0.5 without using filters.

Lamella Design Precision Separation

Hundreds of cone-shaped plates create 25,000 m² of separation surface. Air passes through narrow gaps where spinning force pushes particles away from the clean air. This keeps low pressure and steady performance no matter how many particles come through.

Lamella Design Precision Separation

Hundreds of cone-shaped plates create 25,000 m² of separation surface. Air passes through narrow gaps where spinning force pushes particles away from the clean air. This keeps low pressure and steady performance no matter how many particles come through.

Lamella Design Precision Separation

Hundreds of cone-shaped plates create 25,000 m² of separation surface. Air passes through narrow gaps where spinning force pushes particles away from the clean air. This keeps low pressure and steady performance no matter how many particles come through.

Self-cleaning technology

CLER's cleaning process uses very little liquid (0.5 dl/month for a 1,000 m² building) to automatically rinse particles from the plates. No manual cleaning. No filter changes. Just continuous operation.

Self-cleaning technology

CLER's cleaning process uses very little liquid (0.5 dl/month for a 1,000 m² building) to automatically rinse particles from the plates. No manual cleaning. No filter changes. Just continuous operation.

Self-cleaning technology

CLER's cleaning process uses very little liquid (0.5 dl/month for a 1,000 m² building) to automatically rinse particles from the plates. No manual cleaning. No filter changes. Just continuous operation.

Customer case

Customer case

Customer case

McDonald's Gotland eliminated filter changes and duct cleaning with CLER Pro. Three months in, the system captured over 15 liters of grease that would otherwise clog ducts and filters.

15 litres

Grease captured in 3 months

"After four months, the chimney sweep said he'd never seen cleaner ducts. Our filters looked unused and needed no replacement"

Magnus, Franchisee

McDonald's Gotland

90%

Less maintenance

McDonald's Gotland eliminated filter changes and duct cleaning with CLER Pro. Three months in, the system captured over 15 liters of grease that would otherwise clog ducts and filters.

15 litres

Grease captured in 3 months

"After four months, the chimney sweep said he'd never seen cleaner ducts. Our filters looked unused and needed no replacement"

Magnus, Franchisee

McDonald's Gotland

90%

Less maintenance

McDonald's Gotland eliminated filter changes and duct cleaning with CLER Pro. Three months in, the system captured over 15 liters of grease that would otherwise clog ducts and filters.

15 litres

Grease captured in 3 months

"After four months, the chimney sweep said he'd never seen cleaner ducts. Our filters looked unused and needed no replacement"

Magnus, Franchisee

McDonald's Gotland

90%

Less maintenance

One technology.
Endless applications.

One technology.
Endless applications.

One technology.
Endless applications.

FAQ

How does CLER work without filters?
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Instead of trapping particles in disposable filters, our system uses centrifugal force to separate them by weight and density — removing them before they enter the ventilation system.

Can it handle greasy air from kitchens or fast food environments?
icon

Yes. Our solution is designed for demanding environments like Quick Service Restaurants (QSR), where traditional filters clog quickly. It separates even sticky particles like oil and grease, keeping ducts clean.

Is the air really clean enough to reuse?
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Yes. The purified air is so clean it can be safely reused in public areas, contributing to energy savings by retaining warmth from exhaust air.

What happens to the particles that are removed?
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They’re collected in a self-draining unit and removed from the system automatically. No manual cleaning required.

How sustainable is this solution?
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Very. It eliminates the need for disposable filters, reducing waste and CO₂ emissions from manufacturing and transportation. It’s a long-term solution designed with the planet in mind.

Can this be retrofitted to existing systems?
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Yes. Our technology can be integrated into most existing ventilation systems to enhance performance and reduce maintenance.

Do I need to replace any parts?
icon

No. The system is entirely filter-free and self-cleaning. There are no consumables or recurring maintenance parts to replace.

Is it more expensive than traditional filtration systems?
icon

No — the cost is comparable to traditional systems. The key difference is that our solution eliminates ongoing expenses like filter replacements and maintenance. You get the same initial investment, but with significantly lower operating costs over time.

How does CLER work without filters?
icon

Instead of trapping particles in disposable filters, our system uses centrifugal force to separate them by weight and density — removing them before they enter the ventilation system.

Can it handle greasy air from kitchens or fast food environments?
icon

Yes. Our solution is designed for demanding environments like Quick Service Restaurants (QSR), where traditional filters clog quickly. It separates even sticky particles like oil and grease, keeping ducts clean.

Is the air really clean enough to reuse?
icon

Yes. The purified air is so clean it can be safely reused in public areas, contributing to energy savings by retaining warmth from exhaust air.

What happens to the particles that are removed?
icon

They’re collected in a self-draining unit and removed from the system automatically. No manual cleaning required.

How sustainable is this solution?
icon

Very. It eliminates the need for disposable filters, reducing waste and CO₂ emissions from manufacturing and transportation. It’s a long-term solution designed with the planet in mind.

Can this be retrofitted to existing systems?
icon

Yes. Our technology can be integrated into most existing ventilation systems to enhance performance and reduce maintenance.

Do I need to replace any parts?
icon

No. The system is entirely filter-free and self-cleaning. There are no consumables or recurring maintenance parts to replace.

Is it more expensive than traditional filtration systems?
icon

No — the cost is comparable to traditional systems. The key difference is that our solution eliminates ongoing expenses like filter replacements and maintenance. You get the same initial investment, but with significantly lower operating costs over time.

How does CLER work without filters?
icon

Instead of trapping particles in disposable filters, our system uses centrifugal force to separate them by weight and density — removing them before they enter the ventilation system.

Can it handle greasy air from kitchens or fast food environments?
icon

Yes. Our solution is designed for demanding environments like Quick Service Restaurants (QSR), where traditional filters clog quickly. It separates even sticky particles like oil and grease, keeping ducts clean.

Is the air really clean enough to reuse?
icon

Yes. The purified air is so clean it can be safely reused in public areas, contributing to energy savings by retaining warmth from exhaust air.

What happens to the particles that are removed?
icon

They’re collected in a self-draining unit and removed from the system automatically. No manual cleaning required.

How sustainable is this solution?
icon

Very. It eliminates the need for disposable filters, reducing waste and CO₂ emissions from manufacturing and transportation. It’s a long-term solution designed with the planet in mind.

Can this be retrofitted to existing systems?
icon

Yes. Our technology can be integrated into most existing ventilation systems to enhance performance and reduce maintenance.

Do I need to replace any parts?
icon

No. The system is entirely filter-free and self-cleaning. There are no consumables or recurring maintenance parts to replace.

Is it more expensive than traditional filtration systems?
icon

No — the cost is comparable to traditional systems. The key difference is that our solution eliminates ongoing expenses like filter replacements and maintenance. You get the same initial investment, but with significantly lower operating costs over time.

Kitchen air filtration and grease removal systems

Self-cleaning grease extraction and air purification for restaurants and commercial kitchens.

No filter changes, no duct cleaning, no waste.

Kitchen air filtration and grease removal systems

Self-cleaning grease extraction and air purification for restaurants and commercial kitchens.

No filter changes, no duct cleaning, no waste.