Most fungi can survive on clothing for at least two weeks, and many species remain viable for 30 days or more at room temperature. The exact lifespan depends on the type of fungus, the fabric, and how humid the environment is. If you’re dealing with athlete’s foot, ringworm, a yeast infection, or just want to prevent reinfection, understanding these timelines can help you handle your laundry more effectively.
Survival Times by Fungal Type
Not all fungi die on the same schedule. Candida albicans, the yeast behind most thrush and yeast infections, stays alive on both cotton and cotton-polyester blends for at least 14 days under normal indoor conditions. Other Candida species are even hardier. A systematic review of pathogen survival on textiles found that several fungal species applied in high amounts survived at room temperature for 30 days or longer on various fabric types, including Candida parapsilosis, Candida tropicalis, and Aspergillus fumigatus (a common mold).
Dermatophytes, the fungi responsible for ringworm, athlete’s foot, and jock itch, are particularly stubborn. Their reproductive spores (conidia) can cling to fabric fibers and remain capable of causing infection for weeks. Soiled hospital linens contaminated with the ringworm fungus Trichophyton tonsurans have been documented as the source of skin infections in healthcare workers who never even touched the original patient directly.
Why Fabric Type Matters
Natural fibers give fungi more to work with. Cotton is one of the most susceptible materials to fungal colonization, along with suede, because these porous fibers absorb and retain moisture. Polyester and other synthetics are notably more resistant to fungal growth. That said, “more resistant” doesn’t mean immune. In lab conditions, Candida species survived for at least 14 days on a 50/50 cotton-polyester blend, the same duration as on pure cotton. The difference shows up more in how aggressively fungi grow and spread across the fabric rather than whether they survive at all.
If you’re prone to fungal skin infections, choosing moisture-wicking synthetic workout clothes and changing out of sweaty garments quickly can reduce the amount of fungal buildup on your clothing, even if it won’t eliminate the risk entirely.
Humidity and Storage Conditions
Fungi need moisture to thrive. Relative humidity above 70 to 80 percent creates ideal conditions for mold and yeast to grow on textiles, not just survive. A damp gym bag, a pile of sweaty clothes left in a hamper, or a poorly ventilated closet can all push local humidity into that range. The lab studies measuring 14- to 30-day survival times were conducted at moderate humidity (45 to 62 percent). In damper conditions, fungi can persist even longer and actively multiply.
Drying clothes thoroughly before storing them is one of the simplest ways to limit fungal survival. A warm, dry environment won’t kill spores outright, but it slows their activity and makes them more vulnerable to washing.
Your Washing Machine May Be Part of the Problem
A standard wash cycle at low temperature does not reliably kill fungi. When researchers tested contaminated washing machines by running completely sterile socks through a normal laundry cycle, 100 percent of those socks came out positive for fungal growth. The fungal species found on the “clean” socks matched the species previously isolated from inside the washing machine about 70 percent of the time. Fungi transfer to clothing through direct contact with drum surfaces, through the wash water, and even through tiny airborne droplets inside the machine.
This means that if your washing machine harbors fungi from previous loads, it can recontaminate clothes you’re trying to clean. Shared laundry facilities carry the same risk. The machine itself becomes a reservoir.
What Temperature Actually Kills Fungi
Temperature is the single most important variable in getting fungi out of your clothes. Washing at 60°C (140°F) effectively eliminates dermatophyte spores from contaminated fabric. In testing, every single sample washed at 40°C (104°F) still tested positive for live dermatophytes after laundering, while none of the samples washed at 60°C showed any regrowth. Washing at low temperatures not only fails to kill the fungi but can actually spread contamination to other items in the same load.
If your machine has a hot water setting, use it for any clothing that has come into contact with a fungal infection: socks, underwear, towels, bedsheets, and athletic wear. For delicate items that can’t handle high heat, a hot dryer cycle can help, since heat drying also reduces dermatophyte viability.
Laundry Additives That Help
White vinegar has real antifungal properties, though you need a meaningful concentration. Acetic acid (the active component of vinegar) at 5 percent concentration, roughly equivalent to standard household white vinegar, achieved complete elimination of both Aspergillus (a common mold) and Candida albicans on surfaces in laboratory testing. Adding a cup of white vinegar to your wash cycle or using it as a presoak can provide an extra layer of protection, particularly if you’re washing at lower temperatures.
Chlorine bleach is also effective against fungi but damages colored fabrics and elastics. For whites and towels, a bleach cycle paired with hot water is one of the most thorough approaches. For colored clothing, vinegar is the more practical option.
Preventing Reinfection From Your Own Clothes
The most common reason people keep getting fungal skin infections isn’t a new exposure. It’s reinfection from their own clothing, shoes, or towels. Since fungi can survive on fabric for weeks, wearing previously contaminated clothes after your skin has cleared can restart the cycle. This is especially relevant for athlete’s foot and jock itch, where the same socks, shoes, or underwear come into repeated contact with vulnerable skin.
During and after treatment for a fungal infection, wash all clothing that touched the affected area at 60°C or higher. Dry everything thoroughly, ideally in a hot dryer rather than air drying. Replace items that can’t be washed at high temperatures, like old sneakers with fabric linings, if infections keep recurring. Towels deserve the same attention: use a fresh one after each shower and wash used towels before reusing them.
For shoes specifically, which can’t go in the washing machine, alternating between two pairs and letting each one dry completely for at least 24 hours between wears helps reduce fungal buildup. Antifungal shoe sprays or powders can also lower the spore count inside footwear.