How often should the air filter be replaced?

2025-07-09

I. Air Purifier Filters
Primary Filter (for hair and large particles): Clean every 1-3 months, replace every 6-12 months.
Activated Carbon Filter (for odor and formaldehyde removal): Replace every 3-6 months (if formaldehyde concentration is high, shorten to 2-3 months).
HEPA Filter (for PM2.5 and bacteria): Replace every 6-12 months (in high-pollution areas, recommend 3-6 months).
Composite Filter: Replace according to the shortest filter cycle among them.
II. Commercial/Industrial Air Filters
Primary Filter (G1-G4): Usually replace every 1-3 months, used for pre-treatment of large particles.
Intermediate Filter (F5-F9): Replace every 3-6 months, protecting the rear-end high-efficiency filter.
High-Efficiency Filter (H10-U17, such as HEPA, ULPA):
General workshops: Replace every 6-12 months.
Cleanrooms (such as pharmaceutical and electronic workshops): Replace every 3-6 months, and regularly test air volume and resistance. If the resistance exceeds the initial value by 1.5 times, it must be replaced.
Special scenarios (such as hospital operating rooms): According to industry standards, high-efficiency filters must be forcibly replaced every 6-12 months, and professional testing is required.

Cleanroom HEPA Filter

Air Pre Filter

Pocket Bag Filter

V Bank Air Filter

High Temperature Air Filter

Ultra High Efficiency Filter

FFU Fan Filter Unit

Air Supply Outlet

Cleanroom Pass Box

Cleanroom Air Shower

Air Filter Material

Laminar Clean Bench

Laminar Flow Hood

Modular Clean Room

Exhaust Vent

Cleanroom HEPA Filter

Air Pre Filter

Pocket Bag Filter

V Bank Air Filter

High Temperature Air Filter

Ultra High Efficiency Filter

FFU Fan Filter Unit

Air Supply Outlet

Cleanroom Pass Box

Cleanroom Air Shower

Air Filter Material

Laminar Clean Bench

Laminar Flow Hood

Modular Clean Room

Exhaust Vent

How often should the air filter be replaced?

How often should the air filter be replaced?