Fig. 2From: Current status and future perspective of external herbal dispensaries preparing traditional herbal medicine in South Korea: the first National-Wide Survey resultsFacility status in herbal medicine-external herbal dispensary (H-EHD). HEPA: High Efficiency Particulate Air; HVAC: Heating, Ventilation, & Air Conditioning; RO: Reverse Osmosis; ULPA: Ultra-Low Particulate AirBack to article page