Air Filtration for. Indoor Firing Ranges

Transcription

1 Air Filtration for Indoor Firing Ranges

2 References, credits Lead Exposure at an Indoor Firing Range - NIOSH Lead Exposure & Design Considerations for Indoor Firing RAnges - NIOSH Standards - 29 CFR - OSHA Regulations On Target With Farr - Farr Corporation NAFA Guide To Air Filtration - National Air Filtration Association Code of Federal Regulation 40cfr50.12

3 Represents a sizeable market for air filtration products Airborne lead in these facilities is a real hazard You can provide expertise and products to meet EPA and OSHA standards Proper ventilation and filtration is the answer HEPA grade on both exhaust and recirculated air Flanders Precisionaire has the products you need

4 It has been estimated there are 16,000 ranges, serving some 800,000 shooters. Air Filtration for Indoor Firing Ranges

5 Indoor ranges are patronized by city, county, state and federal law enforcement personnel as well as recreational shooters Air Filtration for Indoor Firing Ranges

6 A hazard of indoor shooting is a potentially high level of airborne lead. Inhalation of airborne lead is generally the most important source of occupational lead absorption OSHA Substance data sheet for occupational exposure to airborne lead App A

7 One report showed inorganic lead levels up to 18,000 micrograms per cubic meter at indoor firing ranges. Air Filtration for Indoor Firing Ranges

8 OSHA Current OSHA standards require: Occupational exposure to lead must be limited to 50 micrograms per cubic meter, based on an 8 hour time weighted average. Biological monitoring and medical surveillance is to be made available to employees exposed to inorganic lead above the action level of 30 ug/mg per m 3 (TWA) for more than 30 days per year. Medical removal of personnel (with MRP benefits) from the exposure area when blood levels of lead reach levels specified in the standard.

9 Overexposure to lead with resulting high blood levels of lead can have serious health effects. Heme Synthesis Inhibition Neurological effects Gastrointestinal Renal Reproductive Symptoms range from mild to severe. including but not limited to fatigue, irritability, restlessness, insomnia, vertigo, headache, poor memory, tremor, depression, apathy, drowsiness, stupor, hallucinations, delirium, convulsions, intractable seisures, coma, cardiorespiratory arrest, death.

10 Proper ventilation and filtration can keep airborne lead levels under control.

11 Two areas of filtration must be addressed Exhausted air Recirculated air

12 A typical system Would have air introduced behind the shooter area, 75 to 90 FPM flowing through the shooter area down the range. 30% of total system air exhausted to the atmosphere through registers downrange Outdoor air introduced to recirculated air Less make up air supplied than exhausted to create slight negative pressure Air Exhausted to atmosphere Shooter Area Recirculated Air Outdoor Air

13 EPA NAAQS National primary and secondary ambient air quality standards for lead and its compounds...are: 1.5 micrograms per cubic meter over a calendar quarter. Source: 40CFR50.12 Code of Federal Regulation

14 To better illustrate how stringent the OSHA and EPA standards are: A microgram is one-millionth of one gram. There are over 31 million micrograms in one ounce.

15 HEPA To protect the health of range employees and to comply with OSHA and EPA standards, you need HEPA filtration... both for exhaust and recirculated air.

16 Exhaust Air Filter Recommendation Prefilter 4 deep with MERV of 6-8 Final Filter HEPA with minimum efficiency of 99.97% on.3 micron Air Exhausted to atmosphere Recirculated Air Outdoor Air

17 Recirculated Air Filter Recommendation Prefilter 4 deep with MERV of 6-8 Secondary Filter 12 deep with MERV of 13 Final Filter HEPA with minimum efficiency of 99.97% on.3 micron Air Exhausted to atmosphere Recirculated Air Outdoor Air

18 Several Models of Pre Pleat Pre Filter PrecisionCell ii Secondary Precision Pak Secondary Rigid Pak Secondary PrecisionCell Secondary Superflow V Secondary Metal HEPA Final PB HEPA Final