Pharmaceutical air filters device, generally used in clean workshop,laboratory and clean room, or used for dust prevention of electronic machinery communication equipment.
The selection of filters depends on the specific requirements of the clean room class, the industry and location.
High-Efficiency Particulate Air (HEPA) filters:
designed to remove at least 99.97% of particles that are 0.3 micrometers in diameter, which includes most bacteria and viruses.
Ultra-Low Particulate Air (ULPA) Filters:
provide higher levels of filtration efficiency, capturing at least 99.999% of particles as small as 0.1 micrometers.
Pre-Filters: These are typically coarse filters that capture larger particles to protect the more expensive and sensitive HEPA/ULPA filters from rapid clogging.
Activated Carbon Filters: Although not primarily designed for particle removal, they can be included to absorb volatile organic compounds (VOCs) and odors.
Blower Filter Units (BFUs): In some cases, fan-filter units (FFUs) or laminar flow hoods directly integrate HEPA/ULPA filters into their design to create unidirectional airflow patterns critical for maintaining cleanroom standards.