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The replacement cycle of filter cotton depends on multiple factors. Below are detailed guidelines:  

Replacement Intervals  

– Primary air Filter Cotton: Typically every 2–3 months or after 60–80 operating hours.  

– Ceiling Filter Cotton: Generally every 3–6 months or after 400–450 operating hours.  

-Paint Mist Filter Cotton (Paint Arrestor): Recommended every 80–100 operating hours.  

– Activated Carbon Filter Cotton: Usually every 6–12 months.  

– HEPA Filter:  

  – High-pollution environments: Replace monthly.  

  – Low-pollution environments: Replace every **2–3 months.  

When to Replace?  

1. Visual Inspection 

   – Replace when the surface shows heavy paint buildup, dark discoloration, thinning, or severe clogging.  

2. Testing Method 

   – Use a particle counter to measure airborne contaminants in the spray booth.  

3. Pressure Drop Monitoring  

   – Replace when final resistance reaches the theoretical limit (check manufacturer specs).  

Important Notes  

✔ Always use specialized filter cotton designed for paint booths to ensure performance.  

✔ Replace only when spraying is stopped to avoid contamination and operational disruptions.  

Conclusion 

The replacement frequency of paint mist filter cotton should be determined based on usage intensity, environmental conditions, and filter status. Timely replacement ensures optimal spray quality and workplace safety.  

(Note: Always follow manufacturer recommendations for specific products.)  

This version keeps technical accuracy while improving readability for global professionals. Let me know if you need adjustments!

https://www.amdfil.com/how-often-should-air-filter-media-be-replaced.html

http://www.amdfil.com
Guangzhou AMD Filtration Technology Co., Ltd.

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