How Often Should You Clean Your BBQ Purifier and Exhaust System – And How to Maintain It
If you run a Korean BBQ or hot pot restaurant, you know how important clean air is to your guests and staff. A well-functioning smokeless BBQ system like smokeless BBQ exhaust system or purifier not only improves the dining experience, but also ensures your restaurant meets health and safety standards.
But how often should you clean your exhaust and purifier system? And what maintenance steps are necessary to keep everything running smoothly? Let’s break it down.
If you want to learn more about smokeless equipment for hot pot and BBQ restaurants, you can find more information here.


Why Regular Cleaning Is Critical
Your BBQ exhaust system constantly deals with:
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Grease from grilled meats
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Smoke particles
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Odors and oil mist
Over time, these can clog your filters, reduce airflow, increase fire risk, and make your restaurant smell unpleasant. Dirty systems also consume more energy and shorten the equipment’s life.
How Often Should You Clean?
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Here’s a general guide:
Component Cleaning Frequency Primary grease filter (metal mesh) Every 1–2 weeks Purifier unit (electrostatic or UV type) Every 1–2 months Air ducts Every 3–6 months Fan motor & exhaust outlet Every 6–12 months Note: If your restaurant is very busy, or if you use a lot of oily meat, clean more frequently.
How to Clean & Maintain The Smokeless BBQ System
Remove and wash the grease filters
- Soak in warm water and degreasing detergent.
- Scrub gently with a soft brush, then dry completely.
Clean the purifier core
- For electrostatic purifiers, remove the internal plates and clean with non-corrosive cleaner.
- For UV purifiers, wipe the lamp and internal housing. Replace UV lamps annually.
Inspect fan and motor
- Check for grease buildup or abnormal noise.
- Lubricate if needed and remove dust.
- Schedule duct cleaning
- Use a professional service every few months to prevent hidden fire hazards.
Replace Purifier Parts Regularly
- In addition to cleaning, it’s important to replace key parts of your purifier every 3 to 6 months