Cloth face masks need washing after every wear — or at least once a day — with regular laundry detergent, the warmest water the fabric allows, and a fully dry finish before the next use.
A mask that smells fine can still be one you shouldn’t put back on. Fabric holds moisture against your face for hours, and the moment it comes off it becomes a handling problem. The routine below takes about three minutes of actual work, whether you own two masks or ten. It follows current CDC guidance for cloth face coverings, plus storage and inspection habits that keep a reusable mask usable for months. Machine and hand washing both work; drying is where most people quietly go wrong.
How Often Do Cloth Masks Need Washing?
Wash a cloth face mask after each use, or at minimum once a day. Wash immediately if it gets wet, visibly dirty, or if you wore it somewhere crowded and want to reset it.
The daily threshold exists for people rotating masks through short errands. Wear one mask for a two-hour outing and it’s done — into the laundry, not back on the hook. Three or four masks in rotation makes this easy instead of annoying.
Hand sanitizer doesn’t clean fabric. Spraying a mask with anything and letting it air out leaves it unwashed, and damp fabric is exactly what you don’t want sitting in a drawer.
Washing And Drying A Cloth Mask The Right Way
Regular laundry detergent plus the warmest water setting appropriate for the fabric handles machine washing; drying on high heat until completely dry handles the rest.
- Remove the mask by the ear loops or ties — never the front, which sat against your nose and mouth.
- Wash or sanitize your hands right after removing it.
- Add the mask to a regular load with your usual detergent, on the warmest water setting the cloth can take.
- Dry on the highest heat setting your fabric allows until completely dry — no damp ear loops, no cool spots.
- Wash or sanitize your hands again after handling the clean mask.
No washer and dryer? Hand washing works fine. Use regular laundry detergent and hot water, work the fabric for about 20 seconds, rinse thoroughly, and dry completely before wearing again.
The mask is ready when the fabric feels uniformly dry, including seams and ear loops, and holds its shape with no lingering damp smell.
If you’re building a rotation, this roundup of tested cloth face masks covers fit, layering, and which fabrics hold up to repeated hot washes.
What If You Can’t Wash It Right Away?
Store a wet or dirty mask in a sealed plastic bag until you can wash it. A dry, clean mask goes the other direction — a breathable paper or fabric bag, so it can air out instead of trapping moisture.
Getting these two backwards is the most common mistake. A damp mask sealed in paper stays damp and gets musty. A clean mask sealed in plastic has nowhere for residual moisture to go.
Can You Use Bleach, And How?
Soak 5 minutes, rinse thoroughly, dry completely.
Three rules keep this safe. Confirm the bleach is intended for disinfection and isn’t expired, since old bleach loses potency. Never mix bleach with ammonia or any other cleanser. And room-temperature water matters — hot water plus bleach is not a shortcut.
| Mask State | What To Do | What To Avoid |
|---|---|---|
| Just worn, dry | Wash after each use; once daily at minimum | Hanging it back up unwashed |
| Wet or visibly dirty | Sealed plastic bag, then wash | Breathable bag, which traps dampness in |
| Clean and dry | Breathable paper or fabric bag | Sealed plastic, which holds residual moisture |
| Shared with someone | Wash and dry fully before reuse | Passing it along unwashed |
| Frayed, torn, degraded fabric | Discard and replace it | Wearing it “a little longer” |
| No washer available | Hot water, regular detergent, 20-second hand wash | Spot-cleaning or airing it out instead |
| No detergent available | Bleach solution: 5 tbsp per gallon, soak 5 min | Mixing bleach with ammonia or other cleansers |
Storage, Handling, And When To Retire A Mask
Inspect a cloth mask before each wear; discard if the material has degraded or there are visible tears. A stretched-out mask doesn’t seal or sit the way it should.
Wash or sanitize after removing a mask and after touching or adjusting it, and avoid grabbing the front panel — use the ear loops or ties.
Don’t share cloth face coverings unless they’ve been washed and dried first, including handing a spare to a family member on the way out the door.
Common Questions
Can I wash a cloth mask with the rest of my laundry?
Yes. Cloth masks can go into a regular load with your usual detergent, on the warmest water setting appropriate for the fabric. Wash them with other items rather than running a special cycle, then dry everything on high heat until fully dry.
Does a dryer actually sanitize a cloth mask?
Heat is the point. Drying on the highest heat setting and leaving the mask in until completely dry is what finishes the job a washer starts. A slightly damp mask, or one hung to dry in a cool room, hasn’t met that bar.
How long can a cloth mask sit before it needs washing?
Not long, if worn. Used masks go straight to the wash or into a sealed plastic bag until laundry day.
Sources
- CDC / NIOSH. “Mask Use and Care” Source for washing frequency, laundry detergent and water temperature, dryer heat, and bleach-solution ratios.
- CDC. “About Face Coverings” Source for storage between uses, handling and hand hygiene, sharing rules, and mask inspection and replacement.