Topics:

• Sub-Zero air filter requires frequent replacement
• Air filter does not last very long, needs replacement before one year
• Air filter needs to be replaced quickly
• How long should an air filter last?

Answer:

Sub-Zero air filter lifespan is an approximation. On average, an air filter lasts one year.

• If the filter expires too soon once, a bad filter bulb is the most likely cause.
• If an air filter repeatedly fails prematurely, service is needed. Contact Factory Certified Service for repairs.
• See also:
  • Sub-Zero Air Purification Filter Replacement for instructions
  • Air Filter Cartridge Life