A: In typical commercial settings, every 6–12 months; in high-load environments (labs, hospitals) every 3–6 months or when ΔP ≥ 250 Pa.
A: Verify the filter frame size and airflow arrow, seat the gasket snugly, then seal the housing and perform a quick pressure-balance check.
A: HEPA delivers superior filtration (≥99.97% @ 0.3 µm) versus MERV 13 (≈90% @ 1–3 µm), making it ideal for hospitals, labs, and allergy-sensitive environments.
A: A HEPA (High Efficiency Particulate Air) filter captures at least 99.97% of particles down to 0.3 µm, including dust, pollen, smoke, and airborne microbes.