- True HEPA filter removes up to 99.97% of microscopic airborne particles.
- Designed to fit Alera 4-speed HEPA Air Purifier.
- Replaceable HEPA filter lasts 720 hours.
- Easy to install.
Design to fit the Alera 4-speed HEPA Air Purifier. This True HEPA filter removes up to 99.97% of microscopic airborne particles. For optimal results, replace filter every 720 hours.
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