ULPA Filter vs. HEPA Filter: What's the Difference & Why Does It Matter?by Radhika Chawla Marketer
Indoor air pollution is a severe problem in India. There are numerous dust particles, pollens, bacteria and contaminants in the air that can cause serious health risks and allergies. However, a commercial environment of pharmaceutical, electronics and medical industries require a controlled environment free of such airborne particles.
Therefore, high-efficiency air filters like HEPA and ULPA are employed to maintain a safe environment and prevent cross-contamination. High-Efficiency Particulate Air (HEPA) and Ultra-Low Particulate Air (ULPA) are two of the most common filters used in industries such as automobiles, biomedical, pharmaceutical, hospitals, and semiconductor manufacturing industries have a requirement of safe and filtered air.
Both the HEPA and ULPA filters have many similarities, but they have some key differences too.
Similarities between HEPA & ULPA Filters:
- Both the filters use dense fibers to create a fine mesh to filter the contaminated air.
- Same filtration process: diffusion, interception, and inertial impaction.
- Both the filters do not remove odours and gasses and may require an activated carbon filter.
Difference between HEPA & ULPA Filters:
- HEPA the filter removes airborne particles 0.3 µm in diameter and ULPA filter removes 0.1 µm in diameter.
- HEPA filters have 99.995% efficiency and ULPA filters have 99.999% efficiency in removing airborne particles.
- The ULPA air filter media is denser and allows 20 to 50% less airflow than HEPA filters.
- HEPA provides ISO Class 3 and ULPA provides ISO Class 5 filtration.
- HEPA has a lifespan of up to 10 years and ULPA can be effective for 5 to 8 years.
- HEPA requires less energy than ULPA filters.
- HEPA filters can be combined with pre-filters to trap larger particles before they come into contact with the main filter to increase efficiency.
- Overall, ULPA filters are less efficient at reducing the airborne particulate in a typical room.
HEPA and ULPA filters are critical in preventing cross-contamination, infections and allergens from entering residential and commercial environments. Apart from the production of medicines, electrical equipment, biomedical matters, etc., there are various pieces of equipment too that require a clean an environment such as:
- Laminar floor hoods
- Biosafety Safety Cabinets (BSC)
- Containment gloves boxes
- Ductless exhaust fume hoods
- Closed-loop filtration glove box
Different ULPA & HEPA air filter media can be used in the filters as per the required airflow and filtration in any industry. To buy high-quality and high-efficiency filter media, click here HVAC Air Filter Media.
Created on Feb 23rd 2021 06:27. Viewed 185 times.