The short answer
Check Your Filter Type First
Before you start, look at the filter and your owner's manual. Some filters are meant to be washed, while others are disposable and must be replaced. Using water on a disposable filter can ruin it and reduce its ability to trap particles.
If the filter has a cardboard frame or a paper-like surface, it is likely not washable. HEPA filters often fall into this category. For those, cleaning means gentle vacuuming of the surface, not rinsing. If the filter looks torn or clogged, replacement is the right move.
Gather Your Cleaning Supplies
You need a vacuum with a brush attachment, a soft brush or cloth, and cool water if your filter is washable. Avoid harsh cleaners or soap, as they can leave residue that you might breathe in. A clean, dry towel helps with drying.
For the outside of the unit, a damp cloth works well. Do not submerge the whole air purifier in water. Only the filter, if washable, should come into contact with running water. Keep the fan and motor dry.
- Vacuum with brush attachment
- Soft brush or cloth
- Cool water for washable filters
- Clean, dry towel
- No soap or harsh cleaners
Clean a Washable Filter
If your filter is washable, run it under cool water from the tap. Hold it so the water flows in the opposite direction of the airflow, which is usually marked with an arrow on the filter frame. This helps push trapped dust out.
Gently squeeze the filter to remove excess water, but do not twist or wring it. Twisting can damage the fibers. Then lay it flat on a towel and let it air dry completely. Drying can take 24 hours or more, so plan ahead.
Clean a Non-Washable Filter
For a HEPA or disposable filter, use the brush attachment on your vacuum to gently remove dust from the surface. Work from the dirty side, if you can tell which side that is. Do not press hard, as you can tear the fibers.
Vacuuming can remove surface dust, but it will not restore a filter that is saturated with particles. If the filter looks gray or clogged, or if the air purifier seems less effective, replacement is the better option. Check the manual for how often to replace it.
Reassemble and Maintain
Once the filter is completely dry, place it back into the air purifier. Make sure it fits snugly and that the cover is closed properly. Plug the unit back in and run it on a low setting for a few minutes to confirm everything works.
To keep the filter cleaner longer, vacuum the pre-filter or the outside of the unit every few weeks. If you live in Layton, regular cleaning can help your air purifier handle everyday dust. For deeper issues like smoke or mold, consider professional help.
If your air purifier has been exposed to water damage or high humidity, the filter might harbor mold. In that case, cleaning may not be enough. You may need to replace the filter and address the moisture source. A professional can help assess the situation.
Water damage does not wait
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Call Now (801) 383-0232Frequently asked questions
How often should I clean my air purifier filter?
Check your manual for the exact schedule. In general, vacuum a non-washable filter every 2 to 4 weeks. Wash a washable filter every 1 to 3 months, depending on use and dust levels. If you notice reduced airflow or a musty smell, clean or replace it sooner.
Can I use soap or vinegar to clean the filter?
Avoid soap, vinegar, or any cleaning solution on the filter. These can leave residues that you might inhale. Water alone is the right choice for washable filters. For non-washable filters, use only a vacuum brush. Harsh chemicals can damage the filter material.
What if my filter is wet from a leak or flood?
A wet filter can grow mold quickly. Do not run the air purifier with a wet filter. Remove the filter and let it dry completely, but if it has been wet for more than a day or two, replace it. Also check the unit for moisture damage, and consider professional help for the water issue.