Fine Dining in Clean Air: ASPRA Air Purification at Restaurant ’t Nonnetje
Ensuring Safe Dining with Advanced Air Purification During COVID-19
During the COVID-19 pandemic, Michelin-starred restaurant 't Nonnetje in Harderwijk, The Netherlands, took proactive steps to ensure a safe and comfortable dining experience for its guests. With a dining space of 300 cubic meters accommodating around 50 diners, maintaining optimal air quality was a priority.
By installing a state-of-the-art ASPRA air purification system, the restaurant successfully minimized airborne risks while keeping its doors open safely. The ASPRA system provided a clean, virus-free environment, offering both staff and guests peace of mind.

About the Project
Fine dining should not only be about exquisite food but also about a safe and healthy atmosphere. During the COVID-19 pandemic, restaurant 't Nonnetje (two Michelin stars) in Harderwijk sought a way to protect its diners and staff while continuing operations.
Recognizing the importance of indoor air quality, the restaurant implemented an ASPRA air purification system, ensuring that the 300m³ dining area remained free from harmful aerosols, viruses, and fine dust particles. This allowed 't Nonnetje to operate under COVID-proof conditions, reinforcing its commitment to excellence in both dining and safety.
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Summary
1. Problem
Ensuring safe indoor dining during COVID-19 with optimal air quality in a 300m³ restaurant space.
2. Solution
Installed an ASPRA Aura air purification system to remove airborne contaminants and create a virus-free environment.
3. Result
Safe, clean indoor air for staff and diners, allowing the restaurant to remain open under COVID-proof conditions.
Highlights
Created a COVID-safe indoor dining experience.
Filtered airborne pathogens, reducing infection risks.
Allowed safe operations without compromising guest comfort.
Demonstrated leadership in health-conscious hospitality.
Detailed Approach

Problem Description
During the COVID-19 pandemic, restaurants faced significant challenges in maintaining safe indoor environments. With limited ventilation options and strict regulations, fine-dining establishments needed an effective air purification solution to ensure guest and staff safety.
At 't Nonnetje, where atmosphere and safety are equally important, the challenge was to maintain an optimal dining environment while reducing the risk of airborne contamination.
The Solution
To ensure a COVID-safe restaurant environment, 't Nonnetje installed an ASPRA air purification system. The system efficiently removed airborne viruses, bacteria, and particulate matter, significantly improving indoor air quality.
With continuous air purification, ASPRA enabled safe recirculation of clean air, allowing the restaurant to remain open with confidence while adhering to health guidelines.


The Result
With ASPRA air purification in place, restaurant 't Nonnetje successfully maintained a safe and welcoming dining atmosphere. The system ensured airborne contaminants were continuously removed, allowing for an uncompromised fine dining experience.
The implementation of ASPRA not only enhanced guest confidence but also set an industry benchmark for health-conscious hospitality. The project reinforced how cutting-edge air purification solutions can support the future of fine dining.
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