How to Clean and Maintain Your Lasko HEPA Filter Pack

By Lasko: #1 Fan & Heater Brand in the USA | Fans, Heaters, Air | Published: 2026-10-24

Category: How-to Guides

Keep your Lasko air purifier running efficiently by learning when and how to clean your HEPA filter pack, plus tips for extending filter life.

Quick Answer

Clean your Lasko HEPA filter pack every 2-3 months with a soft brush or vacuum attachment, and replace the filter pack every 6-12 months for best performance.

Why Regular Maintenance Matters

A clogged HEPA filter forces your air purifier to work harder, reducing airflow and trapping efficiency. Regular cleaning removes surface dust and pet hair, preserving the 3-stage filtration system that combines carbon, true HEPA, and pre-filter layers.

The Lasko HF25630 Replacement Filter Pack is designed to fit seamlessly with your Pure Platinum Air Purifier. While the filter media itself cannot be washed (water damages HEPA fibers), you can safely clean the pre-filter surface to extend its usable life between replacements.

When to Clean vs. Replace

Clean the filter pack when you notice reduced airflow from the outlet or a visible layer of dust on the intake side. Replace the pack entirely after 6-12 months of regular use, or sooner if you live with smokers, pets, or high outdoor pollution.

A common mistake is waiting until the filter looks dirty from the outside. Odors or a musty smell often mean the carbon layer is saturated, and cleaning alone won't restore it—replacement is needed.

Step-by-Step Maintenance Guide

1. Unplug and Remove the Filter Pack: Turn off and unplug your Lasko air purifier. Open the front grille or filter door according to your model's manual. Slide out the filter pack carefully to avoid shaking loose trapped dust. Always unplug first—never clean a filter while the unit is running.
2. Vacuum the Pre-Filter Surface: Attach a soft brush nozzle to your vacuum cleaner. Gently run it across the intake side of the filter pack (the side facing the room). Focus on the outer pre-filter layer, not the inner HEPA pleats. Use short, light strokes to lift dust without damaging the fibers. Do not press hard or use a stiff brush—this can tear the pre-filter mesh.
3. Tap Out Loose Debris: Take the filter pack outside or over a trash bin. Hold it by the frame and gently tap all four sides against a hard surface. This dislodges deeper particles that the vacuum missed. For stubborn pet hair, use a dry microfiber cloth to wipe the outer grille. Never wash or wet the filter—moisture ruins HEPA media and promotes mold growth.
4. Reinstall and Reset the Filter Timer: Slide the cleaned filter pack back into the purifier, ensuring it sits flush. Close the grille and plug the unit in. If your model has a filter reset button, press and hold it for 3-5 seconds until the indicator light turns off or resets. Skipping the reset may cause the purifier to remind you to replace the filter too early.
5. Schedule Your Next Cleaning and Replacement: Mark your calendar to repeat steps 1-4 every 2-3 months. Plan to order a new Lasko HF25630 Replacement Filter Pack every 6-12 months, or sooner if you notice persistent odors or reduced airflow after cleaning. Set a recurring reminder—it's easy to forget until the air quality drops.

Product Facts

Lasko HF25630 Air Purifier Replacement Filter Pack: The Lasko HF25630 Replacement Filter Pack uses a 3-stage filtration system combining advanced technologies to effectively clean the air. This means you get carbon pre-filtering, true HEPA particle capture, and an extra layer for odors—all in one pack, but each stage ages differently, so regular maintenance helps the whole system last longer.
Lasko HF25630 Air Purifier Replacement Filter Pack