The standard service life of each core component of the laminar flow hood (industry standard, normal clean conditions)
1. Centrifugal fan / Turbulent fan
Service life: 8 to 12 years; average daily operation time of about 60,000 to 100,000 hours; dust-free and non-overloaded can last up to 12 years; with large dust and long-term full-load operation will shorten to 6 to 8 years.
2. High-efficiency filter HEPA (end)
Service life: 1.5 to 3 years; in a conventional clean workshop: 2 to 3 years; with large dust flow: 1.5 to 2 years; replace based on wind speed decrease and pressure difference exceeding the standard.
3. Intermediate / Primary filter
Primary: 6 to 12 months
Intermediate: 1 to 2 years
Pre-filter material protects HEPA, timely replacement can significantly extend the service life of the high-efficiency filter.
4. Electrical control part (controller, speed regulator, switch, sensor)
Service life: 8 to 15 years; ordinary buttons / speed control panel: 8 to 10 years; digital pressure difference, intelligent controller: 10 to 15 years; main aging occurs on the circuit board and button contacts.
5. Box frame (stainless steel / color steel plate / aluminum plate)
Service life: 15 to 20 years + 304 stainless steel almost no aging; cold-rolled spray paint / color steel plate in humid environment 10 to 15 years prone to rust.
6. Sealing rubber strips, shock-absorbing pads
Service life: 2 to 3 years; long-term wind exposure and temperature changes cause aging, hardening and leakage, then replacement is needed.
7. Lamp / UV sterilization lamp (if equipped)
Conventional lighting lamp: 1.5 to 2 years
UV sterilization lamp: 8000 hours, approximately 1 year
Summary summary
Fan 8 to 12 years, HEPA 1.5 to 3 years, electrical control 8 to 15 years, box 15 years or more, sealing parts 2 to 3 years.