Based on the normal operating conditions of the pharmaceutical / cleanroom, the amount of dust, and the duration of operation, we provide you with the most standard replacement cycle that can be directly written into the SOP. At the same time, by comparing with the negative pressure weighing room, it is convenient for you to select and make maintenance plans.
Ultrasonic hood, initial and intermediate efficiency filters service life
1. Initial efficiency filter (G4)
Ordinary cleanroom, low dust: 6-12 months
High traffic, more dust: 3-6 months
Judgment criteria: Increase in pressure difference, obvious accumulation of dust on the surface, decrease in air volume
Daily use: Use air gun to blow off dust once a week, which can extend by 1-2 months
2. Intermediate efficiency filter (F8)
Normal conditions: 12-24 months (1-2 years)
High dust, 24-hour continuous operation: 8-12 months
Compared with the negative pressure weighing room (for your reference)
Negative pressure weighing room initial efficiency: 2-4 months (high dust, drug powder, clogging occurs quickly)
Negative pressure weighing room intermediate efficiency: 6-10 months
Brief summary: Ultrasonic hood: Initial efficiency 6 months – 1 year, intermediate efficiency 1-2 years
Negative pressure weighing room: Initial efficiency 2-4 months, intermediate efficiency 6 months – 10 months